,,address ,,delivered ,,before ,,the ,,british ,,association ,,assembled ,,at ,,belfast ,,with ,,additions ,,by ,,john ,,tyndall1 ,f4,r4,s4 ,,president ,,fifth ,,thousand ,,london ,,longmans1 ,,green1 ,,and ,,co4 #ahgd ',there is one ,god supreme over all gods1 diviner than mortals1 ,whose form is not like unto man's1 and as unlike his nature2 ,but vain mortals imagine that gods like themselves are begotten1 ,with human sensations and voice and corporeal members2 ,so1 if oxen or lions had hands and could work in man's fashion1 ,and trace out with chisel or brush their conception of ,godhead1 ,then would horses depict gods like horses1 and oxen like oxen1 ,each kind the divine with its own form and nature endowing4' ,,xenophanes of ,colophon 7six centuries ,b4,c471 ',supernatural ,religion1' ,vol4 ,i4 p4 #gf4 ',it were better to have no opinion of ,god at all1 than such an opinion as is unworthy of ,him2 for the one is unbelief1 the other is contumely4' ,,bacon4 ,,preface4 ,at the request of my ,publishers1 strengthened by the expressed desire of many ,correspondents1 ,i reprint1 with a few slight alterations1 this ,address4 ,it was written under some disadvantages this year in the ,alps1 and sent by instalments to the printer4 ,when read subsequently it proved too long for its purpose1 and several of its passages were accordingly struck out4 ,some of them are here restored4 ,it has provoked an unexpected amount of criticism4 ,this1 in due time1 will subside2 and ,i confidently look forward to a calmer future for a verdict1 founded not on imaginary sins1 but on the real facts of the case4 ,of the numberless strictures and accusations1 some of them exceeding fierce1 of which ,i have been1 and continue to be1 the object1 ,i refrain from speaking at any length4 ,to one or two of them1 however1 out of respect for their sources1 ,i would ask permission briefly to refer4 ,an evening paper of the first rank1 after the ascription of various more or less questionable aims and motives1 proceeds to the imputation1 that ,i permitted the cheers of my audience to 'stimulate' me to the utterance of words which no right-minded man1 without a sense of the gravest responsibility1 could employ4 ,i trust the author of this charge will allow me in all courtesy to assure him that the words ascribed by him to the spur of the moment were written in ,switzerland2 that they stood in the printed copy of the ,address from which ,i read2 that they evoked no 'cheers1' but a silence far more impressive than cheers2 and that1 finally1 as regards both approbation and the reverse1 my course had been thought over and decided long before ,i ventured to address a ,belfast audience4 ,a writer in a most able theological journal represents me as 'patting religion on the back4' ,the thought of doing so is certainly his1 not mine4 ,the facts of religious feeling are to me as certain as the facts of physics4 ,but the world1 ,i hold1 will have to distinguish between the feeling and its forms1 and to vary the latter in accordance with the intellectual condition of the age4 ,i am unwilling to dwell upon statements ascribed to eminent men1 which may be imperfectly reported in the newspapers1 and ,i therefore pass over a recent sermon attributed to the ,bishop of ,manchester with the remark1 that one engaged so much as he is in busy and1 ,i doubt not on the whole1 beneficent outward life1 is not likely to be among the earliest to discern the more inward and spiritual signs of the times1 or to prepare for the condition which they foreshadow4 ,in a recent speech at ,dewsbury1 the ,dean of ,manchester is reported to have expressed himself thus3--',the ,professor 7myself7 ended a most remarkable and eloquent speech by terming himself a material ,atheist4' ,my attention was drawn to ,dean ,cowie's statement by a correspondent1 who described it as standing 'conspicuous among the strange calumnies' with which my words have been assailed4 ,for myself ,i use no language which could imply that ,i am hurt by such attacks4 ,they have lost their power to wound or injure4 ,so likewise as regards a resolution recently passed by the ,presbytery of ,belfast1 in which ,professor ,huxley and myself are spoken of as 'ignoring the existence of ,god1 and advocating pure and simple materialism2' had the possessive pronoun 'our' preceded ',god1' and had the words 'what we consider' preceded 'pure1' this statement would have been objectively true2 but to make it so this qualification is required4 ,cardinal ,cullen1 ,i am told1 is also actively engaged in erecting spiritual barriers against the intrusion of ',infidelity' into ,ireland4 ,his ,eminence1 ,i believe1 has reason to suspect that the ,catholic youth around him are not proof to the seductions of science4 ,strong as he is1 ,i believe him to be impotent here4 ,the youth of ,ireland will imbibe science1 however slowly2 they will be leavened by it1 however gradually4 ,and to its inward modifying power among ,catholics themselves1 rather than to any ,protestant propagandism1 or other external influence1 ,i look for the abatement of various incongruities2 among them1 of those medival proceedings which1 to the scandal and amazement of our nineteenth century intelligence1 have been revived among us during the last two years4 ,in connexion with the charge of ,atheism1 ,i would make one remark4 ,christian men are proved by their writings to have their hours of weakness and of doubt1 as well as their hours of strength and of conviction2 and men like myself share1 in their own way1 these variations of mood and tense4 ,were the religious views of many of my assailants the only alternative ones1 ,i do not know how strong the claims of the doctrine of ',material ,atheism' upon my allegiance might be4 ,probably they would be very strong4 ,but1 as it is1 ,i have noticed during years of self-observation that it is not in hours of clearness and vigour that this doctrine commends itself to my mind2 that in the presence of stronger and healthier thought it ever dissolves and disappears1 as offering no solution of the mystery in which we dwell1 and of which we form a part4 ,to coarser attacks and denunciations ,i pay no attention2 nor have ,i any real reason to complain of revilings addressed to me1 which professing ,christians1 as could readily be proved1 do not scruple to use towards each other4 ,the more agreeable task remains to me of thanking those who have tried1 however hopelessly1 to keep accusation within the bounds of justice1 and who1 privately1 and at some risk in public1 have honoured me with the expression of their sympathy and approval4 ,,john ,,tyndall4 ,athenum ,club4 ,september #af1 #ahgd4 ,,address1 ,,etc4 ,an impulse inherent in primeval man turned his thoughts and questionings betimes towards the sources of natural phenomena4 ,the same impulse1 inherited and intensified1 is the spur of scientific action to-day4 ,determined by it1 by a process of abstraction from experience we form physical theories which lie beyond the pale of experience1 but which satisfy the desire of the mind to see every natural occurrence resting upon a cause4 ,in forming their notions of the origin of things1 our earliest historic 7and doubtless1 we might add1 our prehistoric7 ancestors pursued1 as far as their intelligence permitted1 the same course4 ,they also fell back upon experience1 but with this difference--that the particular experiences which furnished the weft and woof of their theories were drawn1 not from the study of nature1 but from what lay much closer to them1 the observation of men4 ,their theories accordingly took an anthropomorphic form4 ,to supersensual beings1 which1 'however potent and invisible1 were nothing but a species of human creatures1 perhaps raised from among mankind1 and retaining all human passions and appetites1'#a were handed over the rule and governance of natural phenomena4 ,tested by observation and reflection1 these early notions failed in the long run to satisfy the more penetrating intellects of our race4 ,far in the depths of history we find men of exceptional power differentiating themselves from the crowd1 rejecting these anthropomorphic notions1 and seeking to connect natural phenomena with their physical principles4 ,but long prior to these purer efforts of the understanding the merchant had been abroad1 and rendered the philosopher possible2 commerce had been developed1 wealth amassed1 leisure for travel and speculation secured1 while races educated under different conditions1 and therefore differently informed and endowed1 had been stimulated and sharpened by mutual contact4 ,in those regions where the commercial aristocracy of ancient ,greece mingled with its eastern neighbours the sciences were born1 being nurtured and developed by free-thinking and courageous men4 ,the state of things to be displaced may be gathered from a passage of ,euripides quoted by ,hume4 ',there is nothing in the world2 no glory1 no prosperity4 ,the gods toss all into confusion2 mix everything with its reverse1 that all of us1 from our ignorance and uncertainty1 may pay them the more worship and reverence4' ,now1 as science demands the radical extirpation of caprice and the absolute reliance upon law in nature1 there grew with the growth of scientific notions a desire and determination to sweep from the field of theory this mob of gods and demons1 and to place natural phenomena on a basis more congruent with themselves4 ,the problem which had been previously approached from above was now attacked from below2 theoretic effort passed from the super- to the sub-sensible4 ,it was felt that to construct the universe in idea it was necessary to have some notion of its constituent parts--of what ,lucretius subsequently called the ',first ,beginnings4' ,abstracting again from experience1 the leaders of scientific speculation reached at length the pregnant doctrine of atoms and molecules1 the latest developments of which were set forth with such power and clearness at the last meeting of the ,british ,association4 ,thought1 no doubt1 had long hovered about this doctrine before it attained the precision and completeness which it assumed in the mind of ,democritus1#b a philosopher who may well for a moment arrest our attention4 ',few great men1' says ,lange1 a non-materialist1 in his excellent ',history of ,materialism1' to the spirit and to the letter of which ,i am equally indebted1 'have been so despitefully used by history as ,democritus4 ,in the distorted images sent down to us through unscientific traditions there remains of him almost nothing but the name of the laughing philosopher1 while figures of immeasurably smaller significance spread themselves out at full length before us4' ,lange speaks of ,bacon's high appreciation of ,democritus--for ample illustrations of which ,i am indebted to my excellent friend ,mr4 ,spedding1 the learned editor and biographer of ,bacon4 ,it is evident1 indeed1 that ,bacon considered ,democritus to be a man of weightier metal than either ,plato or ,aristotle1 though their philosophy 'was noised and celebrated in the schools1 amid the din and pomp of professors4' ,it was not they1 but ,genseric and ,attila and the barbarians1 who destroyed the atomic philosophy4 ',for at a time when all human learning had suffered shipwreck these planks of ,aristotelian and ,platonic philosophy1 as being of a lighter and more inflated substance1 were preserved and came down to us1 while things more solid sank and almost passed into oblivion4' ,the son of a wealthy father1 ,democritus devoted the whole of his inherited fortune to the culture of his mind4 ,he travelled everywhere2 visited ,athens when ,socrates and ,plato were there1 but quitted the city without making himself known4 ,indeed1 the dialectic strife in which ,socrates so much delighted had no charms for ,democritus1 who held that 'the man who readily contradicts and uses many words is unfit to learn anything truly right4' ,he is said to have discovered and educated ,protagoras the sophist1 being struck as much by the manner in which he1 being a hewer of wood1 tied up his faggots as by the sagacity of his conversation4 ,democritus returned poor from his travels1 was supported by his brother1 and at length wrote his great work entitled ',diakosmos1' which he read publicly before the people of his native town4 ,he was honoured by his countrymen in various ways1 and died serenely at a great age4 ,the principles enunciated by ,democritus reveal his uncompromising antagonism to those who deduced the phenomena of nature from the caprices of the gods4 ,they are briefly these3--#a4 ,from nothing comes nothing4 ,nothing that exists can be destroyed4 ,all changes are due to the combination and separation of molecules4 #b4 ,nothing happens by chance4 ,every occurrence has its cause from which it follows by necessity4 #c4 ,the only existing things are the atoms and empty space2 all else is mere opinion4 #d4 ,the atoms are infinite in number and infinitely various in form2 they strike together1 and the lateral motions and whirlings which thus arise are the beginnings of worlds4 #e4 ,the varieties of all things depend upon the varieties of their atoms1 in number1 size1 and aggregation4 #f4 ,the soul consists of fine1 smooth1 round atoms1 like those of fire4 ,these are the most mobile of all4 ,they interpenetrate the whole body1 and in their motions the phenomena of life arise4 ,the first five propositions are a fair general statement of the atomic philosophy1 as now held4 ,as regards the sixth1 ,democritus made his fine smooth atoms do duty for the nervous system1 whose functions were then unknown4 ,the atoms of ,democritus are individually without sensation2 they combine in obedience to mechanical laws2 and not only organic forms1 but the phenomena of sensation and thought are the result of their combination4 ,that great enigma1 'the exquisite adaptation of one part of an organism to another part1 and to the conditions of life1' more especially the construction of the human body1 ,democritus made no attempt to solve4 ,empedocles1 a man of more fiery and poetic nature1 introduced the notion of love and hate among the atoms to account for their combination and separation4 ,noticing this gap in the doctrine of ,democritus1 he struck in with the penetrating thought1 linked1 however1 with some wild speculation1 that it lay in the very nature of those combinations which were suited to their ends 7in other words1 in harmony with their environment7 to maintain themselves1 while unfit combinations1 having no proper habitat1 must rapidly disappear4 ,thus more than #b1jjj years ago the doctrine of the 'survival of the fittest1' which in our day1 not on the basis of vague conjecture1 but of positive knowledge1 has been raised to such extraordinary significance1 had received at all events partial enunciation4#c ,epicurus1#d said to be the son of a poor schoolmaster at ,samos1 is the next dominant figure in the history of the atomic philosophy4 ,he mastered the writings of ,democritus1 heard lectures in ,athens1 went back to ,sarnos1 and subsequently wandered through various countries4 ,he finally returned to ,athens1 where he bought a garden1 and surrounded himself by pupils1 in the midst of whom he lived a pure and serene life1 and died a peaceful death4 ,democritus looked to the soul as the ennobling part of man2 even beauty without understanding partook of animalism4 ,epicurus also rated the spirit above the body2 the pleasure of the body was that of the moment1 while the spirit could draw upon the future and the past4 ,his philosophy was almost identical with that of ,democritus2 but he never quoted either friend or foe4 ,one main object of ,epicurus was to free the world from superstition and the fear of death4 ,death he treated with indifference4 ,it merely robs us of sensation4 ,as long as we are1 death is not2 and when death is1 we are not4 ,life has no more evil for him who has made up his mind that it is no evil not to live4 ,he adored the gods1 but not in the ordinary fashion4 ,the idea of divine power1 properly purified1 he thought an elevating one4 ,still he taught1 ',not he is godless who rejects the gods of the crowd1 but rather he who accepts them4' ,the gods were to him eternal and immortal beings1 whose blessedness excluded every thought of care or occupation of any kind4 ,nature pursues her course in accordance with everlasting laws1 the gods never interfering4 ,they haunt ',the lucid interspace of world and world ,where never creeps a cloud or moves a wind1 ,nor ever falls the least white star of snow1 ,nor ever lowest roll of thunder moans1 ,nor sound of human sorrow mounts to mar ,their sacred everlasting calm4'#e ,lange considers the relation of ,epicurus to the gods subjective2 the indication probably of an ethical requirement of his own nature4 ,we cannot read history with open eyes1 or study human nature to its depths1 and fail to discern such a requirement4 ,man never has been1 and he never will be1 satisfied with the operations and products of the ,understanding alone2 hence physical science cannot cover all the demands of his nature4 ,but the history of the efforts made to satisfy these demands might be broadly described as a history of errors--the error1 in great part1 consisting in ascribing fixity to that which is fluent1 which varies as we vary1 being gross when we are gross1 and becoming1 as our capacities widen1 more abstract and sublime4 ,on one great point the mind of ,epicurus was at peace4 ,he neither sought nor expected1 here or hereafter1 any personal profit from his relation to the gods4 ,and it is assuredly a fact that loftiness and serenity of thought may be promoted by conceptions which involve no idea of profit of this kind4 ',did ,i not believe1' said a great man to me once1 'that an ,intelligence is at the heart of things1 my life on earth would be intolerable4' ,the utterer of these words is not1 in my opinion1 rendered less noble but more noble by the fact that it was the need of ethical harmony here1 and not the thought of personal profit hereafter1 that prompted his observation4 ,there are persons1 not belonging to the highest intellectual zone1 nor yet to the lowest1 to whom perfect clearness of exposition suggests want of depth4 ,they find comfort and edification in an abstract and learned phraseology4 ,to some such people ,epicurus1 who spared no pains to rid his style of every trace of haze and turbidity1 appeared1 on this very account1 superficial4 ,he had1 however1 a disciple who thought it no unworthy occupation to spend his days and nights in the effort to reach the clearness of his master1 and to whom the ,greek philosopher is mainly indebted for the extension and perpetuation of his fame4 ,a century and a half after the death of ,epicurus1 ,lucretius#f wrote his great poem1 ',on the ,nature of ,things1' in which he1 a ,roman1 developed with extraordinary ardour the philosophy of his ,greek predecessor4 ,he wishes to win over his friend ,memnius to the school of ,epicurus2 and although he has no rewards in a future life to offer1 although his object appears to be a purely negative one1 he addresses his friend with the heat of an apostle4 ,his object1 like that of his great forerunner1 is the destruction of superstition2 and considering that men trembled before every natural event as a direct monition from the gods1 and that ever-lasting torture was also in prospect1 the freedom aimed at by ,lucretius might perhaps be deemed a positive good4 ',this terror1' he says1 'and darkness of mind must be dispelled1 not by the rays of the sun and glittering shafts of day1 but by the aspect and the law of nature4' ,he refutes the notion that anything can come out of nothing1 or that that which is once begotten can be recalled to nothing4 ,the first beginnings1 the atoms1 are indestructible1 and into them all things can be resolved at last4 ,bodies are partly atoms1 and partly combinations of atoms2 but the atoms nothing can quench4 ,they are strong in solid singleness1 and by their denser combination all things can be closely packed and exhibit enduring strength4 ,he denies that matter is infinitely divisible4 ,we come at length to the atoms1 without which1 as an imperishable substratum1 all order in the generation and development of things would be destroyed4 ,the mechanical shock of the atoms being in his view the all-sufficient cause of things1 he combats the notion that the constitution of nature has been in any way determined by intelligent design4 ,the inter-action of the atoms throughout infinite time rendered all manner of combinations possible4 ,of these the fit ones persisted1 while the unfit ones disappeared4 ,not after sage deliberation did the atoms station themselves in their right places1 nor did they bargain what motions they should assume4 ,from all eternity they have been driven together1 and after trying motions and unions of every kind1 they fell at length into the arrangements out of which this system of things has been formed4 ',if you will apprehend and keep in mind these things1 nature1 free at once1 and rid of her haughty lords1 is seen to do all things spontaneously of herself1 without the meddling of the gods4'#g ,to meet the objection that his atoms cannot be seen1 ,lucretius describes a violent storm1 and shows that the invisible particles of air act in the same way as the visible particles of water4 ,we perceive1 moreover1 the different smells of things1 yet never see them coming to our nostrils4 ,again1 clothes hung up on a shore which waves break upon become moist1 and then get dry if spread out in the sun1 though no eye can see either the approach or the escape of the water particles4 ,a ring1 worn long on the finger1 becomes thinner2 a water-drop hollows out a stone2 the ploughshare is rubbed away in the field2 the street pavement is worn by the feet2 but the particles that disappear at any moment we cannot see4 ,nature acts through invisible particles4 ,that ,lucretius had a strong scientific imagination the foregoing references prove4 ,a fine illustration of his power in this respect is his explanation of the apparent rest of bodies whose atoms are in motion4 ,he employs the image of a flock of sheep with skipping lambs1 which1 seen from a distance1 presents simply a white patch upon the green hill1 the jumping of the individual lambs being quite invisible4 ,his vaguely-grand conception of the atoms falling eternally through space suggested the nebular hypothesis to ,kant1 its first propounder4 ,far beyond the limits of our visible world are to be found atoms innumerable1 which have never been united to form bodies1 or which1 if once united1 have been again dispersed1 falling silently through immeasurable intervals of time and space4 ,as everywhere throughout the ,all the same conditions are repeated1 so must the phenomena be repeated also4 ,above us1 below us1 beside us1 therefore1 are worlds without end2 and this1 when considered1 must dissipate every thought of a deflection of the universe by the gods4 ,the worlds come and go1 attracting new atoms out of limitless space1 or dispersing their own particles4 ,the reputed death of ,lucretius1 which forms the basis of ,mr4 ,tennyson's noble poem1 is in strict accordance with his philosophy1 which was severe and pure4 ,during the centuries lying between the first of these three philosophers and the last1 the human intellect was active in other fields than theirs4 ,the sophists had run through their career4 ,at ,athens had appeared ,socrates1 ,plato1 and ,aristotle1 who ruined the sophists1 and whose yoke remains to some extent unbroken to the present hour4 ,within this period also the ,school of ,alexandria was founded1 ,euclid wrote his ',elements1' and made some advance in optics4 ,archimedes had propounded the theory of the lever and the principles of hydrostatics4 ,pythagoras had made his experiments on the harmonic intervals1 while astronomy was immensely enriched by the discoveries of ,hipparchus1 who was followed by the historically more celebrated ,ptolemy4 ,anatomy had been made the basis of ,scientific medicine2 and it is said by ,draper#h that vivisection then began4 ,in fact1 the science of ancient ,greece had already cleared the world of the fantastic images of divinities operating capriciously through natural phenomena4 ,it had shaken itself free from that fruitless scrutiny 'by the internal light of the mind alone1' which had vainly sought to transcend experience and reach a knowledge of ultimate causes4 ,instead of accidental observation1 it had introduced observation with a purpose2 instruments were employed to aid the senses2 and scientific method was rendered in a great measure complete by the union of ,induction and ,experiment4 ,what1 then1 stopped its victorious advance8 ,why was the scientific intellect compelled1 like an exhausted soil1 to lie fallow for nearly two millenniums before it could regather the elements necessary to its fertility and strength8 ,bacon has already let us know one cause2 ,whewell ascribes this stationary period to four causes--obscurity of thought1 servility1 intolerance of disposition1 enthusiasm of temper--and he gives striking examples of each4#i ,but these characteristics must have had their antecedents in the circumstances of the time4 ,rome and the other cities of the ,empire had fallen into moral putrefaction4 ,christianity had appeared1 offering the gospel to the poor1 and1 by moderation if not asceticism of life1 practically protesting against the profligacy of the age4 ,the sufferings of the early ,christians1 and the extraordinary exaltation of mind which enabled them to triumph over the diabolical tortures to which they were subjected1#aj must have left traces not easily effaced4 ,they scorned the earth1 in view of that 'building of ,god1 that house not made with hands1 eternal in the heavens4' ,the ,scriptures which ministered to their spiritual needs were also the measure of their ,science4 ,when1 for example1 the celebrated question of antipodes came to be discussed1 the ,bible was with many the ultimate court of appeal4 ,augustin1 who flourished ,a4,d4 #djj1 would not deny the rotundity of the earth2 but he would deny the possible existence of inhabitants at the other side1 'because no such race is recorded in ,scripture among the descendants of ,adam4' ,archbishop ,boniface was shocked at the assumption of a 'world of human beings out of the reach of the means of salvation4' ,thus reined in1 ,science was not likely to make much progress4 ,later on the political and theological strife between the ,church and civil governments1 so powerfully depicted by ,draper1 must have done much to stifle investigation4 ,whewell makes many wise and brave remarks regarding the spirit of the ,middle ,ages4 ,it was a menial spirit4 ,the seekers after natural knowledge had forsaken that fountain of living waters1 the direct appeal to nature by observation and experiment1 and had given themselves up to the remanipulation of the notions of their predecessors4 ,it was a time when thought had become abject1 and when the acceptance of mere authority led1 as it always does in science1 to intellectual death4 ,natural events1 instead of being traced to physical1 were referred to moral causes2 while an exercise of the phantasy1 almost as degrading as the spiritualism of the present day1 took the place of scientific speculation4 ,then came the mysticism of the ,middle ,ages1 ,magic1 ,alchemy1 the ,neo-platonic philosophy1 with its visionary though sublime abstractions1 which caused men to look with shame upon their own bodies as hindrances to the absorption of the creature in the blessedness of the ,creator4 ,finally came the ,scholastic philosophy1 a fusion1 according to ,lange1 of the least-mature notions of ,aristotle with the ,christianity of the ,west4 ,intellectual immobility was the result4 ,as a traveller without a compass in a fog may wander long1 imagining he is making way1 and find himself after hours of toil at his starting-point1 so the schoolmen1 having 'tied and untied the same knots and formed and dissipated the same clouds1' found themselves at the end of centuries in their old position4 ,with regard to the influence wielded by ,aristotle in the ,middle ,ages1 and which1 though to a less extent1 he still wields1 ,i would ask permission to make one remark4 ,when the human mind has achieved greatness and given evidence of extraordinary power in any domain1 there is a tendency to credit it with similar power in all other domains4 ,thus theologians have found comfort and assurance in the thought that ,newton dealt with the question of revelation1 forgetful of the fact that the very devotion of his powers1 through all the best years of his life1 to a totally different class of ideas1 not to speak of any natural disqualification1 tended to render him less instead of more competent to deal with theological and historic questions4 ,goethe1 starting from his established greatness as a poet1 and indeed from his positive discoveries in ,natural ,history1 produced a profound impression among the painters of ,germany when he published his ',farbenlehre1' in which he endeavoured to overthrow ,newton's theory of colours4 ,this theory he deemed so obviously absurd that he considered its author a charlatan1 and attacked him with a corresponding vehemence of language4 ,in the domain of ,natural ,history ,goethe had made really considerable discoveries2 and we have high authority for assuming that1 had he devoted himself wholly to that side of science1 he might have reached in it an eminence comparable with that which he attained as a poet4 ,in sharpness of observation1 in the detection of analogies1 however apparently remote1 in the classification and organization of facts according to the analogies discerned1 ,goethe possessed extraordinary powers4 ,these elements of scientific inquiry fall in with the discipline of the poet4 ,but1 on the other hand1 a mind thus richly endowed in the direction of natural history may be almost shorn of endowment as regards the more strictly called physical and mechanical sciences4 ,goethe was in this condition4 ,he could not formulate distinct mechanical conceptions2 he could not see the force of mechanical reasoning2 and in regions where such reasoning reigns supreme he became a mere ignis fatuus to those who followed him4 ,i have sometimes permitted myself to compare ,aristotle with ,goethe1 to credit the ,stagirite with an almost superhuman power of amassing and systematizing facts1 but to consider him fatally defective on that side of the mind in respect to which incompleteness has been just ascribed to ,goethe4 ,whewell refers the errors of ,aristotle1 not to a neglect of facts1 but to 'a neglect of the idea appropriate to the facts2 the idea of ,mechanical cause1 which is ,force1 and the substitution of vague or inapplicable notions1 involving only relations of space or emotions of wonder4' ,this is doubtless true2 but the word 'neglect' implies mere intellectual misdirection1 whereas in ,aristotle1 as in ,goethe1 it was not1 ,i believe1 misdirection1 but sheer natural incapacity which lay at the root of his mistakes4 ,as a physicist1 ,aristotle displayed what we should consider some of the worst attributes of a modern physical investigator--indistinctness of ideas1 confusion of mind1 and a confident use of language1 which led to the delusive notion that he had really mastered his subject1 while he had as yet failed to grasp even the elements of it4 ,he put words in the place of things1 subject in the place of object4 ,he preached ,induction without practising it1 inverting the true order of inquiry by passing from the general to the particular1 instead of from the particular to the general4 ,he made of the universe a closed sphere1 in the centre of which he fixed the earth1 proving from general principles1 to his own satisfaction and to that of the world for near #b1jjj years1 that no other universe was possible4 ,his notions of motion were entirely unphysical4 ,it was natural or unnatural1 better or worse1 calm or violent--no real mechanical conception regarding it lying at the bottom of his mind4 ,he affirmed that a vacuum could not exist1 and proved that if it did exist motion in it would be impossible4 ,he determined priori how many species of animals must exist1 and shows on general principles why animals must have such and such parts4 ,when an eminent contemporary philosopher1 who is far removed from errors of this kind1 remembers these abuses of the priori method1 he will be able to make allowance for the jealousy of physicists as to the acceptance of so-called priori truths4 ,aristotle's errors of detail1 as shown by ,eucken and ,lange1 were grave and numerous4 ,he affirmed that only in man we had the beating of the heart1 that the left side of the body was colder than the right1 that men have more teeth than women1 and that there is an empty space at the back of every man's head4 ,there is one essential quality in physical conceptions which was entirely wanting in those of ,aristotle and his followers4 ,i wish it could be expressed by a word untainted by its associations2 it signifies a capability of being placed as a coherent picture before the mind4 ,the ,germans express the act of picturing by the word vorstellen1 and the picture they call a ,vorstellung4 ,we have no word in ,english which comes nearer to our requirements than ,imagination1 and1 taken with its proper limitations1 the word answers very well2 but1 as just intimated1 it is tainted by its associations1 and therefore objectionable to some minds4 ,compare1 with reference to this capacity of mental presentation1 the case of the ,aristotelian who refers the ascent of water in a pump to ,nature's abhorrence of a vacuum1 with that of ,pascal when he proposed to solve the question of atmospheric pressure by the ascent of the ,puy de ,dome4 ,in the one case the terms of the explanation refuse to fall into place as a physical image2 in the other the image is distinct1 the fall and rise of the barometer being clearly figured as the balancing of two varying and opposing pressures4 ,during the drought of the ,middle ,ages in ,christendom1 the ,arabian intellect1 as forcibly shown by ,draper1 was active4 ,with the intrusion of the ,moors into ,spain1 he says1 order1 learning1 and refinement took the place of their opposites4 ,when smitten with disease1 the ,christian peasant resorted to a shrine1 the ,moorish one to an instructed physician4 ,the ,arabs encouraged translations from the ,greek philosophers1 but not from the ,greek poets4 ,they turned in disgust 'from the lewdness of our classical mythology1 and denounced as an unpardonable blasphemy all connexion between the impure ,olympian ,jove and the ,most ,high ,god4' ,draper traces still further than ,whewell the ,arab elements in our scientific terms1 and points out that the under garment of ladies retains to this hour its ,arab name4 ,he gives examples of what ,arabian men of science accomplished1 dwelling particularly on ,alhazen1 who was the first to correct the ,platonic notion that rays of light are emitted by the eye4 ,he discovered atmospheric refraction1 and points out that we see the sun and the moon after they have set4 ,he explains the enlargement of the sun and moon1 and the shortening of the vertical diameters of both these bodies1 when near the horizon4 ,he is aware that the atmosphere decreases in density with increase of elevation1 and actually fixes its height at #eh miles4 ,in the ,book of the ,balance ,wisdom1 he sets forth the connexion between the weight of the atmosphere and its increasing density4 ,he shows that a body will weigh differently in a rare and dense atmosphere3 he considers the force with which plunged bodies rise through heavier media4 ,he understands the doctrine of the centre of gravity1 and applies it to the investigation of balances and steelyards4 ,he recognises gravity as a force1 though he falls into the error of making it diminish simply as the distance increased1 and of making it purely terrestrial4 ,he knows the relation between the velocities1 spaces1 and times of falling bodies1 and has distinct ideas of capillary attraction4 ,he improved the hydrometer4 ,the determination of the densities of bodies as given by ,alhazen approach very closely to our own4 ',i join1' says ,draper1 in the pious prayer of ,alhazen1 'that in the day of judgment the ,all-,merciful will take pity on the soul of ,abur-,raihn1 because he was the first of the race of men to construct a table of specific gravities4' ,if all this be historic truth 7and ,i have entire confidence in ,dr4 ,draper71 well may he 'deplore the systematic manner in which the literature of ,europe has contrived to put out of sight our scientific obligations to the ,mahommedans4'#aa ,the strain upon the mind during the stationary period towards ultra-terrestrial things1 to the neglect of problems close at hand1 was sure to provoke reaction4 ,but the reaction was gradual2 for the ground was dangerous1 a power being at hand competent to crush the critic who went too far4 ,to elude this power and still allow opportunity for the expression of opinion1 the doctrine of 'twofold truth' was invented1 according to which an opinion might be held2 'theologically' and the opposite opinion 'philosophically4'#ab ,thus in the thirteenth century the creation of the world in six days1 and the unchangeableness of the individual soul which had been so distinctly affirmed by ,st4 ,thomas ,aquinas1 were both denied philosophically1 but admitted to be true as articles of the ,catholic faith4 ,when ,protagoras uttered the maxim which brought upon him so much vituperation1 that' opposite assertions are equally true1' he simply meant that human beings differed so much from each other that what was subjectively true to the one might be subjectively untrue to the other4 ,the great ,sophist never meant to play fast and loose with the truth by saying that one of two opposite assertions1 made by the same individual1 could possibly escape being a lie4 ,it was not 'sophistry1' but the dread of theologic vengeance that generated this double dealing with conviction2 and it is astonishing to notice what lengths were possible to men who were adroit in the use of artifices of this kind4 ,towards the close of the stationary period a word-weariness1 if ,i may so express it1 took more and more possession of men's minds4 ,christendom had become sick of the ,school philosophy and its verbal wastes1 which led to no issue1 but left the intellect in everlasting haze4 ,here and there was heard the voice of one impatiently crying in the wilderness1 ',not unto ,aristotle1 not unto subtle hypothesis1 not unto church1 ,bible1 or blind tradition1 must we turn for a knowledge of the universe1 but to the direct investigation of ,nature by observation and experiment4' ,in #aedc the epoch-making work of ,copernicus on the paths of the heavenly bodies appeared4 ,the total crash of ,aristotle's closed universe with the earth at its centre followed as a consequence1 and 'the earth moves6' became a kind of watchword among intellectual freemen4 ,copernicus was ,canon of the ,church of ,frauenburg1 in the diocese of ,ermeland4 ,for three-and-thirty years he had withdrawn himself from the world and devoted himself to the consolidation of his great scheme of the solar system4 ,he made its blocks eternal2 and even to those who feared it and desired its overthrow it was so obviously strong that they refrained for a time from meddling with it4 ,in the last year of the life of ,copernicus his book appeared3 it is said that the old man received a copy of it a few days before his death1 and then departed in peace4 ,the ,italian philosopher ,giordano ,bruno was one of the earliest converts to the new astronomy4 ,taking ,lucretius as his exemplar1 he revived the notion of the infinity of worlds2 and1 combining with it the doctrine of ,copernicus1 reached the sublime generalization that the fixed stars are suns1 scattered numberless through space and accompanied by satellites1 which bear the same relation to them1 that our earth does to our sun1 or our moon to our earth4 ,this was an expansion of transcendent import2 but ,bruno came closer than this to our present line of thought4 ,struck with the problem of the generation and maintenance of organisms1 and duly pondering it1 he came to the conclusion that ,nature in her productions does not imitate the technic of man4 ,her process is one of unravelling and unfolding4 ,the infinity of forms under which matter appears were not imposed upon it by an external artificer2 by its own intrinsic force and virtue it brings these forms forth4 ,matter is not the mere naked1 empty capacity which philosophers have pictured her to be1 but the universal mother who brings forth all things as the fruit of her own womb4 ,this outspoken man was originally a ,dominican monk4 ,he was accused of heresy and had to fly1 seeking refuge in ,geneva1 ,paris1 ,england1 and ,germany4 ,in #aeib he fell into the hands of the ,inquisition at ,venice4 ,he was imprisoned for many years1 tried1 degraded1 excommunicated1 and handed over to the civil power1 with the request that he should be treated gently and 'without the shedding of blood4' ,this meant that he was to be burnt2 and burnt accordingly he was1 on the #afth of ,february1 #afjj4 ,to escape a similar fate ,galileo1 thirty-three years afterwards1 abjured1 upon his knees1 and with his hand upon the holy gospels1 the heliocentric doctrine which he knew to be true4 ,after ,galileo came ,kepler1 who from his ,german home defied the power beyond the ,alps4 ,he traced out from pre-existing observations the laws of planetary motion4 ,materials were thus prepared for ,newton1 who bound those empirical laws together by the principle of gravitation4 ,in the seventeenth century ,bacon and ,descartes1 the restorers of philosophy1 appeared in succession4 ,differently educated and endowed1 their philosophic tendencies were different4 ,bacon held fast to ,induction1 believing firmly in the existence of an external world1 and making collected experiences the basis of all knowledge4 ,the mathematical studies of ,descartes gave him a bias towards ,deduction2 and his fundamental principle was much the same as that of ,protagoras1 who made the individual man the measure of all things4 ',i think1 therefore ,i am1' said ,descartes4 ,only his own identity was sure to him2 and the development of this system would have led to an idealism in which the outer world would be resolved into a mere phenomenon of consciousness4 ,gassendi1 one of ,descartes's contemporaries1 of whom we shall hear more presently1 quickly pointed out that the fact of personal existence would be proved as well by reference to any other act as to the act of thinking4 ,i eat1 therefore ,i am2 or ,i love1 therefore ,i am1 would be quite as conclusive4 ,lichtenberg showed that the very thing to be proved was inevitably postulated in the first two words1 ',i think2' and that no inference from the postulate could by any possibility be stronger than the postulate itself4 ,but ,descartes deviated strangely from the idealism implied in his fundamental principle4 ,he was the first to reduce1 in a manner eminently capable of bearing the test of mental presentation1 vital phenomena to purely mechanical principles4 ,through fear or love1 ,descartes was a good churchman2 he accordingly rejects the notion of an atom1 because it was absurd to suppose that ,god1 if he so pleased1 could not divide an atom2 he puts in the place of the atoms small round particles and light splinters1 out of which he builds the organism4 ,he sketches with marvellous physical insight a machine1 with water for its motive power1 which shall illustrate vital actions4 ,he has made clear to his mind that such a machine would be competent to carry on the processes of digestion1 nutrition1 growth1 respiration1 and the beating of the heart4 ,it would be competent to accept impressions from the external sense1 to store them up in imagination and memory1 to go through the internal movements of the appetites and passions1 the external movement of limbs4 ,he deduces these functions of his machine from the mere arrangement of its organs1 as the movement of a clock or other automaton is deduced from its weights and wheels4 ',as far as these functions are concerned1' he says1 'it is not necessary to conceive any other vegetative or sensitive soul1 nor any other principle of motion or of life1 than the blood and the spirits agitated by the fire which burns continually in the heart1 and which is in no wise different from the fires which exist in inanimate bodies4' ,had ,descartes been acquainted with the steam-engine1 he would have taken it1 instead of a fall of water1 as his motive power1 and shown the perfect analogy which exists between the oxidation of the food in the body and that of the coal in the furnace4 ,he would assuredly have anticipated ,mayer in calling the blood which the heart diffuses 'the oil of the lamp of life2' deducing all animal motions from the combustion of this oil1 as the motions of a steam-engine are deduced from the combustion of its coal4 ,as the matter stands1 however1 and considering the circumstances of the time1 the boldness1 clearness1 and precision with which he grasped the problem of vital dynamics constitute a marvellous illustration of intellectual power4#ac ,during the ,middle ,ages the doctrine of atoms had to all appearance vanished from discussion4 ,in all probability it held its ground among sober-minded and thoughtful men1 though neither the church nor the world was prepared to hear of it with tolerance4 ,once1 in the year #acdh1 it received distinct expression4 ,but retractation by compulsion immediately followed1 and1 thus discouraged1 it slumbered till the seventeenth century1 when it was revived by a contemporary and friend of ,hobbes and ,malmesbury1 the orthodox ,catholic provost of ,digne1 ,gassendi4 ,but before stating his relation to the ,epicurean doctrine1 it will be well to say a few words on the effect1 as regards science1 of the general introduction of monotheism among ,european nations4 ',were men1' says ,hume1 'led into the apprehension of invisible intelligent power by 'contemplation of the works of ,nature1 they could never possibly entertain any conception but of one single being1 who bestowed existence and order on this vast machine1 and adjusted all its parts to one regular system4' ,referring to the condition of the heathen1 who sees a god behind every natural event1 thus peopling the world with thousands of beings whose caprices are incalculable1 ,lange shows the impossibility of any compromise between such notions and those of science1 which proceeds on the assumption of never-changing law and causality4 ',but1' he continues1 with characteristic penetration1 'when the great thought of one ,god1 acting as a unit upon the universe1 has been seized1 the connexion of things in accordance with the law of cause and effect is not only thinkable1 but it is a necessary consequence of the assumption4 ,for when ,i see ten thousand wheels in motion1 and know1 or believe1 that they are all driven by one1 then ,i know that ,i have before me a mechanism the action of every part of which is determined by the plan of the whole4 ,so much being assumed1 it follows that ,i may investigate the structure of that machine1 and the various motions of its parts4 ,for the time being1 therefore1 this conception renders scientific action free4' ,in other words1 were a capricious ,god at the circumference of every wheel and at the end of every lever1 the action of the machine would be incalculable by the methods of science4 ,but the action of all its parts being rigidly determined by their connexions and relations1 and these being brought into play by a single self-acting driving wheel1 then1 though this last prime mover may elude me1 ,i am still able to comprehend the machinery which it sets in motion4 ,we have here a conception of the relation of ,nature to its ,author which seems perfectly acceptable to some minds1 but perfectly intolerable to others4 ,newton and ,boyle lived and worked happily under the influence of this conception2 ,goethe rejected it with vehemence1 and the same repugnance to accepting it is manifest in ,carlyle4#ad ,the analytic and synthetic tendencies of the human mind exhibit themselves throughout history1 great writers ranging themselves sometimes on the one side1 sometimes on the other4 ,men of warm feelings and minds open to the elevating impressions produced by ,nature as a whole1 whose satisfaction1 therefore1 is rather ethical than logical1 lean to the synthetic side2 while the analytic harmonizes best with the more precise and more mechanical bias which seeks the satisfaction of the understanding4 ,some form of pantheism was usually adopted by the one1 while a detached ,creator1 working more or less after the manner of men1 was often assumed by the other4 ,gassendi is hardly to be ranked with either4 ,having formally acknowledged ,god as the great first cause1 he immediately dropped the idea1 applied the known laws of mechanics to the atoms1 deducing thence all vital phenomena4 ,he defended ,epicurus1 and dwelt upon his purity1 both of doctrine and of life4 ,true he was a heathen1 but so was ,aristotle4 ,he assailed superstition and religion1 and rightly1 because he did not know the true religion4 ,he thought that the gods neither rewarded nor punished1 and adored them purely in consequence of their completeness2 here we see1 says ,gassendi1 the reverence of the child instead of the fear of the slave4 ,the errors of ,epicurus shall be corrected1 the body of his truth retained2 and then ,gassendi proceeds1 as any heathen might do1 to build up the world1 and all that therein is1 of atoms and molecules4 ,god1 who created earth and water1 plants and animals1 produced in the first place a definite number of atoms1 which constituted the seed of all things4 ,then began that series of combinations and decompositions which goes on at present1 and which will continue in future4 ,the principle of every change resides in matter4 ,in artificial productions the moving principle is different from the material worked upon2 but in ,nature the agent works within1 being the most active and mobile part of the material itself4 ,thus1 this bold ecclesiastic1 without incurring the censure of the church or the world1 contrives to outstrip ,mr4 ,darwin4 ,the same cast of mind which caused him to detach the ,creator from his universe led him also to detach the soul from the body1 though to the body he ascribes an influence so large as to render the soul almost unnecessary4 ,the aberrations of reason were in his view an affair of the material brain4 ,mental disease is brain disease2 but then the immortal reason sits apart1 and cannot be touched by the disease4 ,the errors of madness are errors of the instrument1 not of the performer4 ,it may be more than a mere result of education1 connecting itself probably with the deeper mental structure of the two men1 that the idea of ,gassendi above enunciated is substantially the same as that expressed by ,professor ,clerk ,maxwell at the close of the very able lecture delivered by him at ,bradford last year4 ,according to both philosophers1 the atoms1 if ,i understand aright1 are the prepared materials which1 formed by the skill of the highest1 produce by their subsequent inter-action all the phenomena of the material world4 ,there seems to be this difference1 however1 between ,gassendi and ,maxwell4 ,the one postulates1 the other infers his first cause4 ,in his 'manufactured articles1' as he calls the atoms1 ,professor ,maxwell finds the basis of an induction which enables him to scale philosophic heights considered inaccessible by ,kant1 and to take the logical step from the atoms to their ,maker4 ,accepting here the leadership of ,kant1 ,i doubt the legitimacy of ,maxwell's logic2 but it is impossible not to feel the ethic glow with which his lecture concludes4 ,there is1 moreover1 a very noble strain of eloquence in his description of the steadfastness of the atoms3--',natural causes1 as we know1 are at work1 which tend to modify1 if they do not at length destroy1 all the arrangements and dimensions of the earth and the whole solar system4 ,but though in the course of ages catastrophes have occurred and may yet occur in the heavens1 though ancient systems may be dissolved and new systems evolved out of their ruins1 the molecules out of which these systems are built--the foundation stones of the material universe--remain unbroken and unworn4' ,the atomic doctrine1 in whole or in part1 was entertained by ,bacon1 ,descartes1 ,hobbes1 ,locke1 ,newton1 ,boyle1 and their successors1 until the chemical law of multiple proportions enabled ,dalton to confer upon it an entirely new significance4 ,in our day there are secessions from the theory1 but it still stands firm4 ,loschmidt1 ,stoney1 and ,sir ,william ,thomson have sought to determine the sizes of the atoms1 or rather to fix the limits between which their sizes lie2 while only last year the discourses of ,williamson and ,maxwell illustrate the present hold of the doctrine upon the foremost scientific minds4 ,in fact1 it may be doubted whether1 wanting this fundamental conception1 a theory of the material universe is capable of scientific statement4 ,ninety years subsequent to ,gassendi the doctrine of bodily instruments1 as it may be called1 assumed immense importance in the hands of ,bishop ,butler1 who1 in his famous ',analogy of ,religion1' developed1 from his own point of view1 and with consummate sagacity1 a similar idea4 ,the ,bishop still influences superior minds2 and it will repay us to dwell for a moment on his views4 ,he draws the sharpest distinction between our real selves and our bodily instruments4 ,he does not1 as far as ,i remember1 use the word soul1 possibly because the term was so hackneyed in his day as it had been for many generations previously4 ,but he speaks of 'living powers1' 'perceiving' or 'percipient powers1' 'moving agents1' 'ourselves1' in the same sense as we should employ the term soul4 ,he dwells upon the fact that limbs may be removed1 and mortal diseases assail the body1 the mind1 almost up to the moment of death1 remaining clear4 ,he refers to sleep and to swoon1 where the 'living powers' are suspended but not destroyed4 ,he considers it quite as easy to conceive of existence out of our bodies as in them3 that we may animate a succession of bodies1 the dissolution of all of them having no more tendency to dissolve our real selves1 or 'deprive us of living faculties--the faculties of perception and action--than the dissolution of any foreign matter which we are capable of receiving impressions from1 or making use of for the common occasions of life4' ,this is the key of the ,bishop's position2 'our organized bodies are no more a part of ourselves than any other matter around us4' ,in proof of this he calls attention to the use of glasses1 which 'prepare objects' for the 'percipient power' exactly as the eye does4 ,the eye itself is no more percipient than the glass2 is quite as much the instrument of the true self1 and also as foreign to the true self1 as the glass is4 ',and if we see with our eyes only in the same manner as we do with glasses1 the like may justly be concluded from analogy of all our senses4' ,lucretius1 as you are aware1 reached a precisely opposite conclusion2 and it certainly would be interesting1 if not profitable1 to us all1 to hear what he would or could urge in opposition to the reasoning of the ,bishop4 ,as a brief discussion of the point will enable us to see the bearings of an important question1 ,i will here permit a disciple of ,lucretius to try the strength of the ,bishop's position1 and then allow the ,bishop to retaliate1 with the view of rolling back1 if he can1 the difficulty upon ,lucretius4 ,the argument might proceed in this fashion3-- ',subjected to the test of mental presentation 7,vorstellung71 your views1 most honoured prelate1 would present to many minds a great1 if not an insuperable difficulty4 ,you speak of living powers1 percipient or perceiving powers1 and ourselves2 but can you form a mental picture of any one of these apart from the organism through which it is supposed to act8 ,test yourself honestly1 and see whether you possess any faculty that would enable you to form such a conception4 ,the true self has a local habitation in each of us2 thus localized1 must it not possess a form8 ,if so1 what form8 ,have you ever for a moment realized it8 ,when a leg is amputated the body is divided into two parts2 is the true self in both of them or in one8 ,thomas ,aquinas might say in both2 but not you1 for you appeal to the consciousness associated with one of the two parts to prove that the other is foreign matter4 ,is consciousness1 then1 a necessary element of the true self8 ,if so1 what do you say to the case of the whole body being deprived of consciousness8 ,if not1 then on what grounds do you deny any portion of the true self to the severed limb8 ,it seems very singular that1 from the beginning to the end of your admirable book 7and no one admires its sober strength more than ,i do71 you never once mention the brain or nervous system4 ,you begin at one end of the body1 and show that its parts may be removed without prejudice to the perceiving power4 ,what if you begin at the other end1 and remove1 instead of the leg1 the brain8 ,the body1 as before1 is divided into two parts2 but both are now in the same predicament1 and neither can be appealed to to prove that the other is foreign matter4 ,or1 instead of going so far as to remove the brain itself1 let a certain portion of its bony covering be removed1 and let a rhythmic series of pressures and relaxations of pressure be applied to the soft substance4 ,at every pressure the faculties of perception and of action vanish2 at every relaxation of pressure they are restored4 ,where1 during the intervals of pressure1 is the perceiving power8 ,i once had the discharge of a large ,leyden battery passed unexpectedly through me3 ,i felt nothing1 but was simply blotted out of conscious existence for a sensible interval4 ,where was my true self during that interval8 ,men who have recovered from lightning-stroke have been much longer in the same state2 and indeed in cases of ordinary concussion of the brain1 days may elapse during which no experience is registered in consciousness4 ,where is the man himself during the period of insensibility8 ,you may say that ,i beg the question when ,i assume the man to have been unconscious1 that he was really conscious all the time1 and has simply forgotten what had occurred to him4 ,in reply to this1 ,i can only say that no one need shrink from the worst tortures that superstition ever invented if only so felt and so remembered4 ,i do not think your theory of instruments goes at all to the bottom of the matter4 ,a telegraph-operator has his instruments1 by means of which he converses with the world2 our bodies possess a nervous system1 which plays a similar part between the perceiving power and external things4 ,cut the wires of the operator1 break his battery1 demagnetize his needle3 by this means you certainly sever his connexion with the world2 but inasmuch as these are real instruments1 their destruction does not touch the man who uses them4 ,the operator survives1 and he knows that he survives4 ,what is it1 ,i would ask1 in the human system that answers to this conscious survival of the operator when the battery of the brain is so disturbed as to produce insensibility1 or when it is destroyed altogether8 ',another consideration1 which you may consider slight1 presses upon me with some force4 ,the brain may change from health to disease1 and through such a change the most exemplary man may be converted into a debauchee or a murderer4 ,my very noble and approved good master had1 as you know1 threatenings of lewdness introduced into his brain by his jealous wife's philter2 and sooner than permit himself to run even the risk of yielding to these base promptings he slew himself4 ,how could the hand of ,lucretius have been thus turned against himself if the real ,lucretius remained as before8 ,can the brain or can it not act in this distempered way without the intervention of the immortal reason8 ,if it can1 then it is a prime mover which requires only healthy regulation to render it reasonably self-acting1 and there is no apparent need of your immortal reason at all4 ,if it cannot1 then the immortal reason1 by its mischievous activity in operating upon a broken instrument1 must have the credit of committing every imaginable extravagance and crime4 ,i think1 if you will allow me to say so1 that the gravest consequences are likely to flow from your estimate of the body4 ,to regard the brain as you would a staff or an eyeglass--to shut your eyes to all its mystery1 to the perfect correlation of its condition and our consciousness1 to the fact that a slight excess or defect of blood in it produces the very swoon to which you refer1 and that in relation to it our meat and drink and air and exercise have a perfectly transcendental value and significance--to forget all this does1 ,i think1 open a way to innumerable errors in our habits of life1 and may possibly in some cases initiate and foster that very disease1 and consequent mental ruin1 which a wiser appreciation of this mysterious organ would have avoided4' ,i can imagine the ,bishop thoughtful after hearing this argument4 ,he was not the man to allow anger to mingle with the consideration of a point of this kind4 ,after due reflection1 and having strengthened himself by that honest contemplation of the facts which was habitual with him1 and which includes the desire to give even adverse facts their due weight1 ,i can suppose the ,bishop to proceed thus3--',you will remember that in the ,analogy of ,religion1 of which you have so kindly spoken1 ,i did not profess to prove anything absolutely1 and that ,i over and over again acknowledged and insisted on the smallness of our knowledge1 or rather the depth of our ignorance1 as regards the whole system of the universe4 ,my object was to show my deistical friends1 who set forth so eloquently the beauty and beneficence of ,nature and the ,ruler thereof1 while they had nothing but scorn for the so-called absurdities of the ,christian scheme1 that they were in no better condition than we were1 and that1 for every difficulty found upon our side1 quite as great a difficulty was to be found upon theirs4 ,i will now1 with your permission1 adopt a similar line of argument4 ,you are a ,lucretian1 and from the combination and separation of insensate atoms deduce all terrestrial things1 including organic forms and their phenomena4 ,let me tell you1 in the first instance1 how far ,i am prepared to go with you4 ,i admit that you can build crystalline forms out of this play of molecular force2 that the diamond1 amethyst1 and snow-star are truly wonderful structures which are thus produced4 ,i will go further and acknowledge that even a tree or flower might in this way be organized4 ,nay1 if you can show me an animal without sensation1 ,i will concede to you that it also might be put together by the suitable play of molecular force4 ',thus far our way is clear2 but now comes my difficulty4 ,your atoms are individually without sensation1 much more are they without intelligence4 ,may ,i ask you1 then1 to try your hand upon this problem8 ,take your dead hydrogen atoms1 your dead oxygen atoms1 your dead carbon atoms1 your dead nitrogen atoms1 your dead phosphorus atoms1 and all the other atoms1 dead as grains of shot1 of which the brain is formed4 ,imagine them separate and sensationless1 observe them running together and forming all imaginable combinations4 ,this1 as a purely mechanical process1 is seeable by the mind4 ,but can you see1 or dream1 or in any way imagine1 how out of that mechanical act1 and from these individually dead atoms1 sensation1 thought1 and emotion are to arise8 ,are you likely to extract ,homer out of the rattling of dice1 or the ,differential ,calculus out of the clash of billiard-balls8 ,i am not all bereft of this ,vorstellungs-,kraft of which you speak1 nor am ,i1 like so many of my brethren1 a mere vacuum as regards scientific knowledge4 ,i can follow a particle of musk until it reaches the olfactory nerve2 ,i can follow the waves of sound until their tremors reach the water of the labyrinth and set the otoliths and ,corti's fibres in motion2 ,i can also visualize the waves of ether as they cross the eye and hit the retina4 ,nay more1 ,i am able to pursue to the central organ the motion thus imparted at the periphery1 and to see in idea the very molecules of the brain thrown into tremors4 ,my insight is not baffled by these physical processes4 ,what baffles and bewilders me1 is the notion that from those physical tremors things so utterly incongruous with them as sensation1 thought1 and emotion can be derived4 ,you may say1 or think1 that this issue of consciousness from the clash of atoms is not more incongruous than the flash of light from the union of oxygen and hydrogen4 ,but ,i beg to say that it is4 ,for such incongruity as the flash possesses is that which ,i now force upon your attention4 ,the flash is an affair of consciousness1 the objective counterpart of which is a vibration4 ,it is a flash only by your interpretation4 ,you are the cause of the apparent incongruity1 and you are the thing that puzzles me4 ,i need not remind you that the great ,leibnitz felt the difficulty which ,i feel1 and that to get rid of this monstrous deduction of life from death he displaced your atoms by his monads1 which were more or less perfect mirrors of the universe1 and out of the summation and integration of which he supposed all the phenomena of life--sentient1 intellectual1 and emotional--to arise4 ',your difficulty1 then1 as ,i see you are ready to admit1 is quite as great as mine4 ,you cannot satisfy the human understanding in its demand for logical continuity between molecular processes and the phenomena of consciousness4 ,this is a rock on which materialism must inevitably split whenever it pretends to be a complete philosophy of life4 ,what is the moral1 my ,lucretian8 ,you and ,i are not likely to indulge in ill-temper in the discussion of these great topics1 where we see so much room for honest differences of opinion4 ,but there are people of less wit or more bigotry 7,i say it with humility7 on both sides1 who are ever ready to mingle anger and vituperation with such discussions4 ,there are1 for example1 writers of note and influence at the present day who are not ashamed to assume the deep personal sin of a great logician to be the cause of his unbelief in a theologic dogma4 ,and there are others who hold that we1 who cherish our noble ,bible1 wrought as it has been into the constitution of our forefathers1 and by inheritance into us1 must necessarily be hypocritical and insincere4 ,let us disavow and discountenance such people1 cherishing the unswerving faith that what is good and true in both our arguments will be preserved for the benefit of humanity1 while all that is bad or false will disappear4' ,i hold the ,bishop's reasoning to be unanswerable1 and his liberality to be worthy of imitation4 ,it is worth remarking that in one respect the ,bishop was a product of his age4 ,long previous to his day the nature of the soul had been so favourite and general a topic of discussion1 that1 when the students of the ,university of ,paris wished to know the leanings of a new ,professor1 they at once requested him to lecture upon the soul4 ,about the time of ,bishop ,butler the question was not only agitated but extended4 ,it was seen by the clear-witted men who entered this arena that many of their best arguments applied equally to brutes and men4 ,the ,bishop's arguments were of this character4 ,he saw it1 admitted it1 accepted the consequences1 and boldly embraced the whole animal world in his scheme of immortality4 ,bishop ,butler accepted with unwavering trust the chronology of the ,old ,testament1 describing it as 'confirmed by the natural and civil history of the world1 collected from common historians1 from the state of the earth1 and from the late inventions of arts and sciences4' ,these words mark progress2 and they must seem somewhat hoary to the ,bishop's successors of to-day4#ae ,it is hardly necessary to inform you that since his time the domain of the naturalist has been immensely extended--the whole science of geology1 with its astounding revelations regarding the life of the ancient earth1 having been created4 ,the rigidity of old conceptions has been relaxed1 the public mind being rendered gradually tolerant of the idea that not for six thousand1 nor for sixty thousand1 nor for six thousand thousand thousand1 but for ons embracing untold millions of years1 this earth has been the theatre of life and death4 ,the riddle of the rocks has been read by the geologist and palontologist1 from subcambrian depths to the deposits thickening over the sea-bottoms of to-day4 ,and upon the leaves of that stone book are1 as you know1 stamped the characters1 plainer and surer than those formed by the ink of history1 which carry the mind back into abysses of past time compared with which the periods which satisfied ,bishop ,butler cease to have a visual angle4 ,the lode of discovery once struck1 those petrified forms in which life was at one time active increased to multitudes and demanded classification4 ,they were grouped in genera1 species1 and varieties1 according to the degree of similarity subsisting between them4 ,thus confusion was avoided1 each object being found in the pigeon-hole appropriated to it and to its fellows of similar morphological or physiological character4 ,the general fact soon became evident that none but the simplest forms of life lie lowest down1 that as we climb higher among the super-imposed strata more perfect forms appear4 ,the change1 however1 from form to form was not continuous1 but by steps--some small1 some great4 ',a section1' says ,mr4 ,huxley1 'a hundred feet thick will exhibit at different heights a dozen species of ,ammonite1 none of which passes beyond its particular zone of limestone1 or clay1 into the zone below it1 or into that above it4' ,in the presence of such facts it was not possible to avoid the question3--,have these forms1 showing1 though in broken stages and with many irregularities1 this unmistakable general advance1 been subjected to no continuous law of growth or variation8 ,had our education been purely scientific1 or had it been sufficiently detached from influences which1 however ennobling in another domain1 have always proved hindrances and delusions when introduced as factors into the domain of physics1 the scientific mind never could have swerved from the search for a law of growth1 or allowed itself to accept the anthropomorphism which regarded each successive stratum as a kind of mechanic's bench for the manufacture of new species out of all relation to the old4 ,biassed1 however1 by their previous education1 the great majority of naturalists invoked a special creative act to account for the appearance of each new group of organisms4 ,doubtless there were numbers who were clear-headed enough to see that this was no explanation at all1 that in point of fact it was an attempt1 by the introduction of a greater difficulty1 to account for a less4 ,but having nothing to offer in the way of explanation1 they for the most part held their peace4 ,still the thoughts of reflecting men naturally and necessarily simmered round the question4 ,de ,maillet1 a contemporary of ,newton1 has been brought into notice by ,professor ,huxley as one who 'had a notion of the modifiability of living forms4' ,in my frequent conversations with him1 the late ,sir ,benjamin ,brodie1 a man of highly philosophic mind1 often drew my attention to the fact that1 as early as #agid1 ,charles ,darwin's grandfather was the pioneer of ,charles ,darwin4#af ,in #ahja1 and in subsequent years1 the celebrated ,lamarck1 who produced so profound an impression on the public mind through the vigorous exposition of his views by the author of the ',vestiges of ,creation1' endeavoured to show the development of species out of changes of habit and external condition4 ,in #ahac ,dr4 ,wells1 the founder of our present theory of ,dew1 read before the ,royal ,society a paper in which1 to use the words of ,mr4 ,darwin1 'he distinctly recognises the principle of natural selection2 and this is the first recognition that has been indicated4' ,the thoroughness and skill with which ,wells pursued his work1 and the obvious independence of his character1 rendered him long ago a favourite with me2 and it gave me the liveliest pleasure to alight upon this additional testimony to his penetration4 ,professor ,grant1 ,mr4 ,patrick ,matthew1 ,von ,buch1 the author of the ',vestiges1' ,d',halloy1 and others1#ag by the enunciation of opinions more or less clear and correct1 showed that the question had been fermenting long prior to the year #aheh1 when ,mr4 ,darwin and ,mr4 ,wallace simultaneously but independently placed their closely concurrent views upon the subject before the ,linnean ,society4 ,these papers were followed in #ahei by the publication of the first edition of ',the ,origin of ,species4' ,all great things come slowly to the birth4 ,copernicus1 as ,i informed you1 pondered his great work for thirty-three years4 ,newton for nearly twenty years kept the idea of ,gravitation before his mind2 for twenty years also he dwelt upon his discovery of ,fluxions1 and doubtless would have continued to make it the object of his private thought had he not found that ,leibnitz was upon his track4 ,darwin for two and twenty years pondered the problem of the origin of species1 and doubtless he would have continued to do so had he not found ,wallace upon his track4#ah ,a concentrated but full and powerful epitome of his labours was the consequence4 ,the book was by no means an easy one2 and probably not one in every score of those who then attacked it had read its pages through1 or were competent to grasp their significance if they had4 ,i do not say this merely to discredit them2 for there were in those days some really eminent scientific men1 entirely raised above the heat of popular prejudice1 willing to accept any conclusion that science had to offer1 provided it was duly backed by fact and argument1 and who entirely mistook ,mr4 ,darwin's views4 ,in fact1 the work needed an expounder2 and it found one in ,mr4 ,huxley4 ,i know nothing more admirable in the way of scientific exposition than those early articles of his on the origin of species4 ,he swept the curve of discussion through the really significant points of the subject1 enriched his exposition with profound original remarks and reflections1 often summing up in a single pithy sentence an argument which a less compact mind would have spread over pages4 ,but there is one impression made by the book itself which no exposition of it1 however luminous1 can convey2 and that is the impression of the vast amount of labour1 both of observation and of thought1 implied in its production4 ,let us glance at its principles4 ,it is conceded on all hands that what are called varieties are continually produced4 ,the rule is probably without exception4 ,no chick and no child is in all respects and particulars the counterpart of its brother and sister2 and in such differences we have 'variety' incipient4 ,no naturalist could tell how far this variation could be carried2 but the great mass of them held that never by any amount of internal or external change1 nor by the mixture of both1 could the offspring of the same progenitor so far deviate from each other as to constitute different species4 ,the function of the experimental philosopher is to combine the conditions of nature and to produce her results2 and this was the method of ,darwin4#ai ,he made himself acquainted with what could1 without any manner of doubt1 be done in the way of producing variation4 ,he associated himself with pigeon-fanciers--bought1 begged1 kept1 and observed every breed that he could obtain4 ,though derived from a common stock1 the diversities of these pigeons were such that 'a score of them might be chosen which1 if shown to an ornithologist1 and he were told that they were wild birds1 would certainly be ranked by him as well-defined species4' ,the simple principle which guides the pigeon-fancier1 as it does the cattle-breeder1 is the selection of some variety that strikes his fancy1 and the propagation of this variety by inheritance4 ,with his eye still directed to the particular appearance which he wishes to exaggerate1 he selects it as it reappears in successive broods1 and thus adds increment to increment until an astonishing amount of divergence from the parent type is effected4 ,the breeder in this case does not produce the elements of the variation4 ,he simply observes them1 and by selection adds them together until the required result has been obtained4 ',no man1' says ,mr4 ,darwin1 'would ever try to make a fantail till he saw a pigeon with a tail developed in some slight degree in an unusual manner1 or a pouter until he saw a pigeon with a crop of unusual size4' ,thus nature gives the hint1 man acts upon it1 and by the law of inheritance exaggerates the deviation4 ,having thus satisfied himself by indubitable facts that the organization of an animal or of a plant 7for precisely the same treatment applies to plants7 is to some extent plastic1 he passes from variation under domestication to variation under nature4 ,hitherto we have dealt with the adding together of small changes by the conscious selection of man4 ,can ,nature thus select8 ,mr4 ,darwin's answer is1 ',assuredly she can4' ,the number of living things produced is far in excess of the number that can be supported2 hence at some period or other of their lives there must be a struggle for existence2 and what is the infallible result8 ,if one organism were a perfect copy of the other in regard to strength1 skill1 and agility1 external conditions would decide4 ,but this is not the case4 ,here we have the fact of variety offering itself to nature1 as in the former instance it offered itself to man2 and those varieties which are least competent to cope with surrounding conditions will infallibly give way to those that are most competent4 ,to use a familiar proverb1 the weakest comes to the wall4 ,but the triumphant fraction again breeds to overproduction1 transmitting the qualities which secured its maintenance1 but transmitting them in different degrees4 ,the struggle for food again supervenes1 and those to whom the favourable quality has been transmitted in excess will assuredly triumph4 ,it is easy to see that we have here the addition of increments favourable to the individual still more rigorously carried out than in the case of domestication2 for not only are unfavourable specimens not selected by nature1 but they are destroyed4 ,this is what ,mr4 ,darwin calls ',natural ,selection1' which 'acts by the preservation and accumulation of small inherited modifications1 each profitable to the preserved being4' ,with this idea he interpenetrates and leavens the vast store of facts that he and others have collected4 ,we cannot1 without shutting our eyes through fear or prejudice1 fail to see that ,darwin is here dealing1 not with imaginary1 but with true causes2 nor can we fail to discern what vast modifications may be produced by natural selection in periods sufficiently long4 ,each individual increment may resemble what mathematicians call a 'differential' 7a quantity indefinitely small72 but definite and great changes may obviously be produced by the integration of these infinitesimal quantities through practically infinite time4 ,if ,darwin1 like ,bruno1 rejects the notion of creative power acting after human fashion1 it certainly is not because he is unacquainted with the numberless exquisite adaptations on which this notion of a supernatural artificer has been founded4 ,his book is a repository of the most startling facts of this description4 ,take the marvellous observation which he cites from ,dr4 ,crger1 where a bucket with an aperture1 serving as a spout1 is formed in an orchid4 ,bees visit the flower3 in eager search of material for their combs they push each other into the bucket1 the drenched ones escaping from their involuntary bath by the spout4 ,here they rub their backs against the viscid stigma of the flower and obtain glue2 then against the pollen-masses1 which are thus stuck to the back of the bee and carried away4 ',when the bee1 so provided1 flies to another flower1 or to the same flower a second time1 and is pushed by its comrades into the bucket1 and then crawls out by the passage1 the pollen-mass upon its back necessarily comes first into contact with the viscid stigma1' which takes up the pollen2 and this is how that orchid is fertilized4 ,or take this other case of the ,catasetum4 ',bees visit these flowers in order to gnaw the labellum2 in doing this they inevitably touch a long1 tapering1 sensitive projection4 ,this1 when touched1 transmits a sensation or vibration to a certain membrane1 which is instantly ruptured1 setting free a spring1 by which the pollen-mass is shot forth like an arrow in the right direction1 and adheres by its viscid extremity to the back of the bee4' ,in this way the fertilising pollen is spread abroad4 ,it is the mind thus stored with the choicest materials of the teleologist that rejects teleology1 seeking to refer these wonders to natural cases4 ,they illustrate1 according to him1 the method of nature1 not the 'technic' of a man-like ,artificer4 ,the beauty of flowers is due to natural selection4 ,those that distinguish themselves by vividly contrasting colours from the surrounding green leaves are most readily seen1 most frequently visited by insects1 most often fertilized1 and hence most favoured by natural selection4 ,coloured berries also readily attract the attention of birds and beasts1 which feed upon them1 spread their manured seeds abroad1 thus giving trees and shrubs possessing such berries a greater chance in the struggle for existence4 ,with profound analytic and synthetic skill1 ,mr4 ,darwin investigates the cell-making instinct of the hive-bee4 ,his method of dealing with it is representative4 ,he falls back from the more perfectly to the less perfectly developed instinct--from the hive-bee to the humble bee1 which uses its own cocoon as a comb1 and to classes of bees of intermediate skill1 endeavouring to show how the passage might be gradually made from the lowest to the highest4 ,the saving of wax is the most important point in the economy of bees4 ,twelve to fifteen pounds of dry sugar are said to be needed for the secretion of a single pound of wax4 ,the quantities of nectar necessary for the wax must therefore be vast2 and every improvement of constructive instinct which results in the saving of wax is a direct profit to the insect's life4 ,the time that would otherwise be devoted to the making of wax is now devoted to the gathering and storing of honey for winter food4 ,he passes from the humble bee with its rude cells1 through the ,melipona with its more artistic cells1 to the hive-bee with its astonishing architecture4 ,the bees place themselves at equal distances apart upon the wax1 sweep and excavate equal spheres round the selected points4 ,the spheres intersect1 and the planes of intersection are built up with thin lamin4 ,hexagonal cells are thus formed4 ,this mode of treating such questions is1 as ,i have said1 representative4 ,he habitually retires from the more perfect and complex to the less perfect and simple1 and carries you with him through stages of perfecting1 adds increment to increment of infinitesimal change1 and in this way gradually breaks down your reluctance to admit that the exquisite climax of the whole could be a result of natural selection4 ,mr4 ,darwin shirks no difficulty2 and1 saturated as the subject was with his own thought1 he must have known better than his critics the weakness as well as the strength of his theory4 ,this of course would be of little avail were his object a temporary dialectic victory instead of the establishment of a truth which he means to be ever-lasting4 ,but he takes no pains to disguise the weakness he has discerned2 nay1 he takes every pains to bring it into the strongest light4 ,his vast resources enable him to cope with objections started by himself and others1 so as to leave the final impression upon the reader's mind that1 if they be not completely answered1 they certainly are not fatal4 ,their negative force being thus destroyed1 you are free to be influenced by the vast positive mass of evidence he is able to bring before you4 ,this largeness of knowledge and readiness of resource render ,mr4 ,darwin the most terrible of antagonists4 ,accomplished naturalists have levelled heavy and sustained criticisms against him--not always with the view of fairly weighing his theory1 but with the express intention of exposing its weak points only4 ,this does not irritate him4 ,he treats every objection with a soberness and thoroughness which even ,bishop ,butler might be proud to imitate1 surrounding each fact with its appropriate detail1 placing it in its proper relations1 and usually giving it a significance which1 as long as it was kept isolated1 failed to appear4 ,this is done without a trace of ill-temper4 ,he moves over the subject with the passionless strength of a glacier2 and the grinding of the rocks is not always without a counterpart in the logical pulverization of the objector4 ,but though in handling this mighty theme all passion has been stilled1 there is an emotion of the intellect incident to the discernment of new truth which often colours and warms the pages of ,mr4 ,darwin4 ,his success has been great2 and this implies not only the solidity of his work1 but the preparedness of the public mind for such a revelation4 ,on this head a remark of ,agassiz impressed me more than anything else4 ,sprung from a race of theologians1 this celebrated man combated to the last the theory of natural selection4 ,one of the many times ,i had the pleasure of meeting him in the ,united ,states was at ,mr4 ,winthrop's beautiful residence at ,brookline1 near ,boston4 ,rising from luncheon1 we all halted as if by a common impulse in front of a window1 and continued there a discussion which had been started at table4 ,the maple was in its autumn glory2 and the exquisite beauty of the scene outside seemed1 in my case1 to interpenetrate without disturbance the intellectual action4 ,earnestly1 almost sadly1 ,agassiz turned1 and said to the gentlemen standing round1 ',i confess that ,i was not prepared to see this theory received as it has been by the best intellects of our time4 ,its success is greater than ,i could have thought possible4' ,in our day grand generalizations have been reached4 ,the theory of the origin of species is but one of them4 ,another1 of still wider grasp and more radical significance1 is the doctrine of the ,conservation of ,energy1 the ultimate philosophical issues of which are as yet but dimly seen--that doctrine which 'binds nature fast in fate' to an extent not hitherto recognized1 exacting from every antecedent its equivalent consequent1 from every consequent its equivalent antecedent1 and bringing vital as well as physical phenomena under the dominion of that law of causal connexion which1 so far as the human understanding has yet pierced1 asserts itself everywhere in nature4 ,long in advance of all definite experiment upon the subject1 the constancy and indestructibility of matter had been affirmed2 and all subsequent experience justified the affirmation4 ,later researches extended the attribute of indestructibility to force4 ,this idea1 applied in the first instance to inorganic1 rapidly embraced organic nature4 ,the vegetable world1 though drawing almost all its nutriment from invisible sources1 was proved incompetent to generate anew either matter or force4 ,its matter is for the most part transmuted gas2 its force transformed solar force4 ,the animal world was proved to be equally uncreative1 all its motive energies being referred to the combustion of its food4 ,the activity of each animal as a whole was proved to be the transferred activity of its molecules4 ,the muscles were shown to be stores of mechanical force1 potential until unlocked by the nerves1 and then resulting in muscular contractions4 ,the speed at which messages fly to and fro along the nerves was determined1 and found to be1 not as had been previously supposed1 equal to that of light or electricity1 but less than the speed of a flying eagle4 ,this was the work of the physicist3 then came the conquests of the comparative anatomist and physiologist1 revealing the structure of every animal1 and the function of every organ in the whole biological series1 from the lowest zoophyte up to man4 ,the nervous system had been made the object of profound and continued study1 the wonderful and1 at bottom1 entirely mysterious1 controlling power which it exercises over the whole organism1 physical and mental1 being recognized more and more4 ,thought could not be kept back from a subject so profoundly suggestive4 ,besides the physical life dealt with by ,mr4 ,darwin1 there is a psychical life presenting similar gradations1 and asking equally for a solution4 ,how are the different grades and order of ,mind to be accounted for8 ,what is the principle of growth of that mysterious power which on our planet culminates in ,reason8 ,these are questions which1 though not thrusting themselves so forcibly upon the attention of the general public1 had not only occupied many reflecting minds1 but had been formally broached by one of them before the ',origin of ,species' appeared4 ,with the mass of materials furnished by the physicist and physiologist in his hands1 ,mr4 ,herbert ,spencer1 twenty years ago1 sought to graft upon this basis a system of psychology2 and two years ago a second and greatly amplified edition of his work appeared4 ,those who have occupied themselves with the beautiful experiments of ,plateau will remember that when two spherules of olive-oil1 suspended in a mixture of alcohol and water of the same density as the oil1 are brought together1 they do not immediately unite4 ,something like a pellicle appears to be formed around the drops1 the rupture of which is immediately followed by the coalescence of the globules into one4 ,there are organisms whose vital actions are almost as purely physical as that of these drops of oil4 ,they come into contact and fuse themselves thus together4 ,from such organisms to others a shade higher1 and from these to others a shade higher still1 and on through an ever-ascending series1 ,mr4 ,spencer conducts his argument4 ,there are two obvious factors to be here taken into account--the creature and the medium in which it lives1 or1 as it is often expressed1 the organism and its environment4 ,mr4 ,spencer's fundamental principle is that between these two factors there is incessant interaction4 ,the organism is played upon by the environment1 and is modified to meet the requirements of the environment4 ,life he defines to be 'a continuous adjustment of internal relations to external relations4' ,in the lowest organisms we have a kind of tactual sense diffused over the entire body2 then1 through impressions from without and their corresponding adjustments1 special portions of the surface become more responsive to stimuli than others4 ,the senses are nascent1 the basis of all of them being that simple tactual sense which the sage ,democritus recognised #b1cjj years ago as their common progenitor4 ,the action of light1 in the first instance1 appears to be a mere disturbance of the chemical processes in the animal organism1 similar to that which occurs in the leaves of plants4 ,by degrees the action becomes localized in a few pigment-cells1 more sensitive to light than the surrounding tissue4 ,the eye is here incipient4 ,at first it is merely capable of revealing differences of light and shade produced by bodies close at hand4 ,followed as the interception of the light is in almost all cases by the contact of the closely adjacent opaque body1 sight in this condition becomes a kind of 'anticipatory touch4' ,the adjustment continues2 a slight bulging out of the epidermis over the pigment-granules supervenes4 ,a lens is incipient1 and1 through the operation of infinite adjustments1 at length reaches the perfection that it displays in the hawk and eagle4 ,so of the other senses2 they are special differentiations of a tissue which was originally vaguely sensitive all over4 ,with the development of the senses the adjustments between the organism and its environment gradually extend in space1 a multiplication of experiences and a corresponding modification of conduct being the result4 ,the adjustments also extend in time1 covering continually greater intervals4 ,along with this extension in space and time the adjustments also increase in specialty and complexity1 passing through the various grades of brute life1 and prolonging themselves into the domain of reason4 ,very striking are ,mr4 ,spencer's remarks regarding the influence of the sense of touch upon the development of intelligence4 ,this is1 so to say1 the mother-tongue of all the senses1 into which they must be translated to be of service to the organism4 ,hence its importance4 ,the parrot is the most intelligent of birds1 and its tactual power is also greatest4 ,from this sense it gets knowledge unattainable by birds which cannot employ their feet as hands4 ,the elephant is the most sagacious of quadrupeds--its tactual range and skill1 and the consequent multiplication of experiences1 which it owes to its wonderfully adaptable trunk1 being the basis of its sagacity4 ,feline animals1 for a similar cause1 are more sagacious than hoofed animals--atonement being to some extent made1 in the case of the horse1 by the possession of sensitive prehensile lips4 ,in the ,primates the evolution of intellect and the evolution of tactual appendages go hand in hand4 ,in the most intelligent anthropoid apes we find the tactual range and delicacy greatly augmented1 new avenues of knowledge being thus open to the animal4 ,man crowns the edifice here1 not only in virtue of his own manipulatory power1 but through the enormous extension of his range of experience1 by the invention of instruments of precision1 which serve as supplemental senses and supplemental limbs4 ,the reciprocal action of these is finely described and illustrated4 ,that chastened intellectual emotion to which ,i have referred in connexion with ,mr4 ,darwin is not absent in ,mr4 ,spencer4 ,his illustrations possess at times exceeding vividness and force2 and from his style on such occasions it is to be inferred that the ganglia of this ,apostle of the ,understanding are sometimes the seat of a nascent poetic thrill4 ,it is a fact of supreme importance that actions the performance of which at first requires even painful effort and deliberation may by habit be rendered automatic4 ,witness the slow learning of its letters by a child1 and the subsequent facility of reading in a man1 when each group of letters which forms a word is instantly1 and without effort1 fused to a single perception4 ,instance the billiard-player1 whose muscles of hand and eye1 when he reaches the perfection of his art1 are unconsciously cordinated4 ,instance the musician1 who1 by practice1 is enabled to fuse a multitude of arrangements1 auditory1 tactual1 and muscular1 into a process of automatic manipulation4 ,combining such facts with the doctrine of hereditary transmission1 we reach a theory of ,instinct4 ,a chick1 after coming out of the egg1 balances itself correctly1 runs about1 picks up food1 thus showing that it possesses a power of directing its movements to definite ends4 ,how did the chick learn this very complex cordination of eye1 muscles1 and beak8 ,it has not been individually taught2 its personal experience is nil2 but it has the benefit of ancestral experience4 ,in its inherited organization are registered all the powers which it displays at birth4 ,so also as regards the instinct of the hive-bee1 already referred to4 ,the distance at which the insects stand apart when they sweep their hemispheres and build their cells is 'organically remembered4' ,man also carries with him the physical texture of his ancestry1 as well as the inherited intellect bound up with it4 ,the defects of intelligence during infancy and youth are probably less due to a lack of individual experience than to the fact that in early life the cerebral organization is still incomplete4 ,the period necessary for completion varies with the race and with the individual4 ,as a round shot outstrips a rifled one on quitting the muzzle of the gun1 so the lower race in childhood may outstrip the higher4 ,but the higher eventually overtakes the lower1 and surpasses it in range4 ,as regards individuals1 we do not always find the precocity of youth prolonged to mental power in maturity2 while the dulness of boyhood is sometimes strikingly contrasted with the intellectual energy of after years4 ,newton1 when a boy1 was weakly1 and he showed no particular aptitude at school2 but in his eighteenth year he went to ,cambridge1 and soon afterwards astonished his teachers by his power of dealing with geometrical problems4 ,during his quiet youth his brain was slowly preparing itself to be the organ of those energies which he subsequently displayed4 ,by myriad blows 7to use a ,lucretian phrase7 the image and superscription of the external world are stamped as states of consciousness upon the organism1 the depth of the impression depending upon the number of the blows4 ,when two or more phenomena occur in the environment invariably together1 they are stamped to the same depth or to the same relief1 and indissolubly connected4 ,and here we come to the threshold of a great question4 ,seeing that he could in no way rid himself of the consciousness of ,space and ,time1 ,kant assumed them to be necessary 'forms of intuition1' the moulds and shapes into which our intuitions are thrown1 belonging to ourselves solely and without objective existence4 ,with unexpected power and success ,mr4 ,spencer brings the hereditary experience theory1 as he holds it1 to bear upon this question4 ',if there exist certain external relations which are experienced by all organisms at all instants of their waking lives--relations which are absolutely constant and universal--there will be established answering internal relations that are absolutely constant and universal4 ,such relations we have in those of ,space and ,time4 ,as the substratum of all other relations of the ,non-,ego1 they must be responded to by conceptions that are the substrata of all other relations in the ,ego4 ,being the constant and infinitely repeated elements of thought1 they must become the automatic elements of thought--the elements of thought which it is impossible to get rid of--the forms of intuition4 ,throughout this application and extension of the ',law of ,inseparable ,association1' ,mr4 ,spencer stands upon his own ground1 invoking1 instead of the experiences of the individual1 the registered experiences of the race4 ,his overthrow of the restriction of experience to the individual is1 ,i think1 complete4 ,that restriction ignores the power of organizing experience furnished at the outset to each individual2 it ignores the different degrees of this power possessed by different races and by different individuals of the same race4 ,were there not in the human brain a potency antecedent to all experience1 a dog or cat ought to be as capable of education as a man4 ,these predetermined internal relations are independent of the experiences of the individual4 ,the human brain is the 'organised register of infinitely numerous experiences received during the evolution of life1 or rather during the evolution of that series of organisms through which the human organism has been reached4 ,the effects of the most uniform and frequent of these experiences have been successively bequeathed1 principal and interest1 and have slowly mounted to that high intelligence which lies latent in the brain of the infant4 ,thus it happens that the ,european inherits from twenty to thirty cubic inches more of brain than the ,papuan4 ,thus it happens that faculties1 as of music1 which scarcely exist in some inferior races1 become congenital in superior ones4 ,thus it happens that out of savages unable to count up to the number of their fingers1 and speaking a language containing only nouns and verbs1 arise at length our ,newtons and ,shakespeares4' ,at the outset of this ,address it was stated that physical theories which lie beyond experience are derived by a process of abstraction from experience4 ,it is instructive to note from this point of view the successive introduction of new conceptions4 ,the idea of the attraction of gravitation was preceded by the observation of the attraction of iron by a magnet1 and of light bodies by rubbed amber4 ,the polarity of magnetism and electricity appealed to the senses2 and thus became the substratum of the conception that atoms and molecules are endowed with definite1 attractive1 and repellent poles1 by the play of which definite forms of crystalline architecture are produced4 ,thus molecular force becomes structural4 ,it required no great boldness of thought to extend its play into organic nature1 and to recognize in molecular force the agency by which both plants and animals are built up4 ,in this way out of experience arise conceptions which are wholly ultra-experiential4 ,none of the atomists of antiquity had any notion of this play of molecular polar force1 but they had experience of gravity as manifested by falling bodies4 ,abstracting from this1 they permitted their atoms to fall eternally through empty space4 ,democritus assumed that the larger atoms moved more rapidly than the smaller ones1 which they therefore could overtake1 and with which they could combine4 ,epicurus1 holding that empty space could offer no resistance to motion1 ascribed to all the atoms the same velocity2 but he seems to have overlooked the consequence that under such circumstances the atoms could never combine4 ,lucretius cut the knot by quitting the domain of physics altogether1 and causing the atoms to move together by a kind of volition4 ,was the instinct utterly at fault which caused ,lucretius thus to swerve from his own principles8 ,diminishing gradually the number of progenitors1 ,mr4 ,darwin comes at length to one 'primordial form2' but he does not say1 as far as ,i remember1 how he supposes this form to have been introduced4 ,he quotes with satisfaction the words of a celebrated author and divine who had 'gradually learnt to see that it is just as noble a conception of the ,deity to believe ,he created a few original forms1 capable of self-development into other and needful forms1 as to believe that ,he required a fresh act of creation to supply the voids caused by the action of ,his laws4' ,what ,mr4 ,darwin thinks of this view of the introduction of life ,i do not know4 ,but the anthropomorphism1 which it seemed his object to set aside1 is as firmly associated with the creation of a few forms as with the creation of a multitude4 ,we need clearness and thoroughness here4 ,two courses and two only1 are possible4 ,either let us open our doors freely to the conception of creative acts1 or1 abandoning them1 let us radically change our notions of ,matter4 ,if we look at matter as pictured by ,democritus1 and as defined for generations in our scientific text-books1 the notion of any form of life whatever coming out of it is utterly unimaginable4 ,the argument placed in the mouth of ,bishop ,butler suffices1 in my opinion1 to crush all such materialism as this4 ,but those who framed these definitions of matter were not biologists but mathematicians1 whose labours referred only to such accidents and properties of matter as could be expressed in their formul4 ,the very intentness with which they pursued mechanical science turned their thoughts aside from the science of life4 ,may not their imperfect definitions be the real cause of our present dread8 ,let us reverently1 but honestly1 look the question in the face4 ,divorced from matter1 where is life to be found8 ,whatever our faith may say1 our knowledge shows them to be indissolubly joined4 ,every meal we eat1 and every cup we drink1 illustrates the mysterious control of ,mind by ,matter4 ,trace the line of life backwards1 and see it approaching more and more to what we call the purely physical condition4 ,we come at length to those organisms which ,i have compared to drops of oil suspended in a mixture of alcohol and water4 ,we reach the protogenes of ,haeckel1 in which we have 'a type distinguishable from a fragment of albumen only by its finely granular character4' ,can we pause here8 ,we break a magnet and find two poles in each of its fragments4 ,we continue the process of breaking1 but1 however small the parts1 each carries with it1 though enfeebled1 the polarity of the whole4 ,and when we can break no longer1 we prolong the intellectual vision to the polar molecules4 ,are we not urged to do something similar in the case of life8 ,is there not a temptation to close to some extent with ,lucretius1 when he affirms that 'nature is seen to do all things spontaneously of herself without the meddling of the gods8' or with ,bruno1 when he declares that ,matter is not 'that mere empty capacity which philosophers have pictured her to be1 but the universal mother who brings forth all things as the fruit of her own womb8' ,believing as ,i do in the continuity of ,nature1 ,i cannot stop abruptly where our microscopes cease to be of use4 ,here the vision of the mind authoritatively supplements the vision of the eye4 ,by an intellectual necessity ,i cross the boundary of the experimental evidence1 and discern in that ,matter which we1 in our ignorance of its latent powers1 and notwithstanding our professed reverence for its ,creator1 have hitherto covered with opprobrium1 the promise and potency of all terrestial ,life4 ,if you ask me whether there exists the least evidence to prove that any form of life can be developed out of matter1 without demonstrable antecedent life1 my reply is that evidence considered perfectly conclusive by many has been adduced2 and that were some of us who have pondered this question to follow a very common example1 and accept testimony because it falls in with our belief1 we also should eagerly close with the evidence referred to4 ,but there is in the true man of science a wish stronger than the wish to have his beliefs upheld2 namely1 the wish to have them true4 ,and this stronger wish causes him to reject the most plausible support if he has reason to suspect that it is vitiated by error4 ,those to whom ,i refer as having studied this question1 believing the evidence offered in favour of 'spontaneous generation' to be thus vitiated1 cannot accept it4 ,they know full well that the chemist now prepares from inorganic matter a vast array of substances which were some time ago regarded as the sole products of vitality4 ,they are intimately acquainted with the structural power of matter as evidenced in the phenomena of crystallization4 ,they can justify scientifically their belief in its potency1 under the proper conditions1 to produce organisms4 ,but in reply to your question they will frankly admit their inability to point to any satisfactory experimental proof that life can be developed save from demonstrable antecedent life4 ,as already indicated1 they draw the line from the highest organisms through lower ones down to the lowest1 and it is the prolongation of this line by the intellect beyond the range of the senses that leads them to the conclusion which ,bruno so boldly enunciated4#bj ,the 'materialism' here professed may be vastly different from what you suppose1 and ,i therefore crave your gracious patience to the end4 ',the question of an external world1' says ,mr4 ,j4 ,s4 ,mill1 'is the great battleground of metaphysics4'#ba ,mr4 ,mill himself reduces external phenomena to 'possibilities of sensation4' ,kant1 as we have seen1 made time and space 'forms' of our own intuitions4 ,fichte1 having first by the inexorable logic of his understanding proved himself to be a mere link in that chain of eternal causation which holds so rigidly in ,nature1 violently broke the chain by making ,nature1 and all that it inherits1 an apparition of his own mind4#bb ,and it is by no means easy to combat such notions4 ,for when ,i say ,i see you1 and that ,i have not the least doubt about it1 the reply is1 that what ,i am really conscious of is an affection of my own retina4 ,and if ,i urge that ,i can check my sight of you by touching you1 the retort would be that ,i am equally transgressing the limits of fact2 for what ,i am really conscious of is1 not that you are there1 but that the nerves of my hand have undergone a change4 ,all we hear1 and see1 and touch1 and taste1 and smell1 are1 it would be urged1 mere variations of our own condition1 beyond which1 even to the extent of a hair's breadth1 we cannot go4 ,that anything answering to our impressions exists outside of ourselves is not a fact1 but an inference1 to which all validity would be denied by an idealist like ,berkeley1 or by a sceptic like ,hume4 ,mr4 ,spencer takes another line4 ,with him1 as with the uneducated man1 there is no doubt or question as to the existence of an external world4 ,but he differs from the uneducated1 who think that the world really is what consciousness represents it to be4 ,our states of consciousness are mere symbols of an outside entity which produces them and determines the order of their succession1 but the real nature of which we can never know4#bc ,in fact1 the whole process of evolution is the manifestation of a ,power absolutely inscrutable to the intellect of man4 ,as little in our day as in the days of ,job can man by searching find this ,power out4 ,considered fundamentally1 then1 it is by the operation of an insoluble mystery that life on earth is evolved1 species differentiated1 and mind unfolded from their prepotent elements in the immeasurable past4 ,there is1 you will observe1 no very rank materialism here4 ,the strength of the doctrine of evolution consists1 not in an experimental demonstration 7for the subject is hardly accessible to this mode of proof71 but in its general harmony with scientific thought4 ,from contrast1 moreover1 it derives enormous relative strength4 ,on the one side we have a theory 7if it could with any propriety be so called7 derived1 as were the theories referred to at the beginning of this ,address1 not from the study of ,nature1 but from the observation of men--a theory which converts the ,power whose garment is seen in the visible universe into an ,artificer1 fashioned after the human model1 and acting by broken efforts1 as man is seen to act4 ,on the other side1 we have the conception that all we see around us1 and all we feel within us--the phenomena of physical nature as well as those of the human mind--have their unsearchable roots in a cosmical life1 if ,i dare apply the term1 an infinitesimal span of which is offered to the investigation of man4 ,and even this span is only knowable in part4 ,we can trace the development of a nervous system1 and correlate with it the parallel phenomena of sensation and thought4 ,we see with undoubting certainty that they go hand in hand4 ,but we try to soar in a vacuum the moment we seek to comprehend the connexion between them4 ,an ,archimedean fulcrum is here required which the human mind cannot command2 and the effort to solve the problem1 to borrow a comparison from an illustrious friend of mine1 is like the effort of a man trying to lift himself by his own waistband4 ,all that has been here said is to be taken in connexion with this fundamental truth4 ,when 'nascent senses' are spoken of1 when 'the differentiation of a tissue at first vaguely sensitive all over' is spoken of1 and when these processes are associated with 'the modification of an organism by its environment1' the same parallelism1 without contact1 or even approach to contact1 is implied4 ,man the object is separated by an impassable gulf from man the subject4 ,there is no motor energy in intellect to carry it without logical rupture from the one to the other4 ,further1 the doctrine of evolution derives man in his totality from the inter-action of organism and environment through countless ages past4 ,the ,human ,understanding1 for example--that faculty which ,mr4 ,spencer has turned so skilfully round upon its own antecedents--is itself a result of the play between organism and environment through cosmic ranges of time4 ,never surely did prescription plead so irresistible a claim4 ,but then it comes to pass that1 over and above his understanding1 there are many other things appertaining to man whose perspective rights are quite as strong as those of the understanding itself4 ,it is a result1 for example1 of the play of organism and environment that sugar is sweet and that aloes are bitter1 that the smell of henbane differs from the perfume of a rose4 ,such facts of consciousness 7for which1 by the way1 no adequate reason has yet been rendered7 are quite as old as the understanding2 and many other things can boast an equally ancient origin4 ,mr4 ,spencer at one place refers to that most powerful of passions--the amatory passion--as one which1 when it first occurs1 is antecedent to all relative experience whatever2 and we may pass its claim as being at least as ancient and valid as that of the understanding4 ,then there are such things woven into the texture of man as the feeling of ,awe1 ,reverence1 ,wonder--and not alone the sexual love just referred to1 but the love of the beautiful1 physical1 and moral1 in ,nature1 ,poetry1 and ,art4 ,there is also that deep-set feeling which1 since the earliest dawn of history1 and probably for ages prior to all history1 incorporated itself in the ,religions of the world4 ,you who have escaped from these religions into the high-and-dry light of the intellect may deride them2 but in so doing you deride accidents of form merely1 and fail to touch the immovable basis of the religious sentiment in the nature of man4 ,to yield this sentiment reasonable satisfaction is the problem of problems at the present hour4 ,and grotesque in relation to scientific culture as many of the religions of the world have been and are--dangerous1 nay destructive1 to the dearest privileges of free-men as some of them undoubtedly have been1 and would1 if they could1 be again--it will be wise to recognize them as the forms of a force1 mischievous1 if permitted to intrude on the region of knowledge1 over which it holds no command1 but capable of being guided to noble issues in the region of emotion1 which is its proper and elevated sphere4 ,all religious theories1 schemes and systems1 which embrace notions of cosmogony1 or which otherwise reach into the domain of science1 must1 in so far as they do this1 submit to the control of science1 and relinquish all thought of controlling it4 ,acting otherwise proved disastrous in the past1 and it is simply fatuous to-day4 ,every system which would escape the fate of an organism too rigid to adjust itself to its environment must be plastic to the extent that the growth of knowledge demands4 ,when this truth has been thoroughly taken in1 rigidity will be relaxed1 exclusiveness diminished1 things now deemed essential will be dropped1 and elements now rejected will be assimilated4 ,the lifting of the life is the essential point2 and as long as dogmatism1 fanaticism1 and intolerance are kept out1 various modes of leverage may be employed to raise life to a higher level4 ,science itself not unfrequently derives motive power from an ultra-scientific source4 ,whewell speaks of enthusiasm of temper as a hindrance to science2 but he means the enthusiasm of weak heads4 ,there is a strong and resolute enthusiasm in which science finds an ally2 and it is to the lowering of this fire1 rather than to the diminution of intellectual insight1 that the lessening productiveness of men of science in their mature years is to be ascribed4 ,mr4 ,buckle sought to detach intellectual achievement from moral force4 ,he gravely erred2 for without moral force to whip it into action1 the achievements of the intellect would be poor indeed4 ,it has been said that science divorces itself from literature2 but the statement1 like so many others1 arises from lack of knowledge4 ,a glance at the less technical writings of its leaders--of its ,helmholtz1 its ,huxley1 and its ,du ,bois-,reymond--would show what breadth of literary culture they command4 ,where among modern writers can you find their superiors in clearness and vigour of literary style8 ,science desires not isolation1 but freely combines with every effort towards the bettering of man's estate4 ,single-handed1 and supported not by outward sympathy1 but by inward force1 it has built at least one great wing of the many-mansioned home which man in his totality demands4 ,and if rough walls and protruding rafter-ends indicate that on one side the edifice is still incomplete1 it is only by wise combination of the parts required with those already irrevocably built that we can hope for completeness4 ,there is no necessary incongruity between what has been accomplished and what remains to be done4 ,the moral glow of ,socrates1 which we all feel by ignition1 has in it nothing incompatible with the physics of ,anaxagoras which he so much scorned1 but which he would hardly scorn to-day4 ,and here ,i am reminded of one amongst us1 hoary1 but still strong1 whose prophet-voice some thirty years ago1 far more than any other of this age1 unlocked whatever of life and nobleness lay latent in its most gifted minds--one fit to stand beside ,socrates or the ,maccabean ,eleazar1 and to dare and suffer all that they suffered and dared--fit1 as he once said of ,fichte1 'to have been the teacher of the ,stoa1 and to have discoursed of ,beauty and ,virtue in the groves of ,academe4' ,with a capacity to grasp physical principles which his friend ,goethe did not possess1 and which even total lack of exercise has not been able to reduce to atrophy1 it is the world's loss that he1 in the vigour of his years1 did not open his mind and sympathies to science1 and make its conclusions a portion of his message to mankind4 ,marvellously endowed as he was--equally equipped on the side of the ,heart and of the ,understanding--he might have done much towards teaching us how to reconcile the claims of both1 and to enable them in coming times to dwell together in unity of spirit and in the bond of peace4 ,and now the end is come4 ,with more time1 or greater strength and knowledge1 what has been here said might have been better said1 while worthy matters here omitted might have received fit expression4 ,but there would have been no material deviation from the views set forth4 ,as regards myself1 they are not the growth of a day2 and as regards you1 ,i thought you ought to know the environment which1 with or without your consent1 is rapidly surrounding you1 and in relation to which some adjustment on your part may be necessary4 ,a hint of ,hamlet's1 however1 teaches us all how the troubles of common life may be ended2 and it is perfectly possible for you and me to purchase intellectual peace at the price of intellectual death4 ,the world is not without refuges of this description2 nor is it wanting in persons who seek their shelter and try to persuade others to do the same4 ,the unstable and the weak will yield to this persuasion1 and they to whom repose is sweeter than the truth4 ,but ,i would exhort you to refuse the offered shelter and to scorn the base repose--to accept1 if the choice be forced upon you1 commotion before stagnation1 the leap of the torrent before the stillness of the swamp4 ,in the course of this ,address ,i have touched on debatable questions and led you over what will be deemed dangerous ground--and this partly with the view of telling you that as regards these questions science claims unrestricted right of search4 ,it is not to the point to say that the views of ,lucretius and ,bruno1 of ,darwin and ,spencer1 may be wrong4 ,here ,i should agree with you1 deeming it indeed certain that these views will undergo modification4 ,but the point is1 that1 whether right or wrong1 we ask the freedom to discuss them4 ,for science1 however1 no exclusive claim is here made2 you are not urged to erect it into an idol4 ,the inexorable advance of man's understanding in the path of knowledge1 and those unquenchable claims of his moral and emotional nature which the understanding can never satisfy1 are here equally set forth4 ,the world embraces not only a ,newton1 but a ,shakespeare--not only a ,boyle1 but a ,raphael--not only a ,kant1 but a ,beethoven--not only a ,darwin1 but a ,carlyle4 ,not in each of these1 but in all1 is human nature whole4 ,they are not opposed1 but supplementary--not mutually exclusive1 but reconcilable4 ,and if1 unsatisfied with them all1 the human mind1 with the yearning of a pilgrim for his distant home1 will turn to the ,mystery from which it has emerged1 seeking so to fashion it as to give unity to thought and faith2 so long as this is done1 not only without intolerance or bigotry of any kind1 but with the enlightened recognition that ultimate fixity of conception is here unattainable1 and that each succeeding age must be held free to fashion the ,mystery in accordance with its own needs--then1 casting aside all the restrictions of ,materialism1 ,i would affirm this to be a field for the noblest exercise of what1 in contrast with the knowing faculties1 may be called the creative faculties of man4 ',fill thy heart with it1' said ,goethe1 'and then name it as thou wilt4' ,goethe himself did this in untranslateable language4#bd ,wordsworth did it in words known to all ,englishmen1 and which may be regarded as a forecast and religious vitalization of the latest and deepest scientific truth1-- ',for ,i have learned ,to look on nature2 not as in the hour ,of thoughtless youth2 but hearing oftentimes ,the still1 sad music of humanity1 ,nor harsh nor grating1 though of ample power ,to chasten and subdue4 ,and ,i have felt ,a presence that disturbs me with the joy ,of elevated thoughts2 a sense sublime ,of something far more deeply interfused1 ,whose dwelling is the light of setting suns1 ,and the round ocean1 and the living air1 ,and the blue sky1 and in the mind of man3 ,a motion and a spirit1 that impels ,all thinking things1 all objects of all thought1 ,and rolls through all things4'#be #a ,hume1 ,natural ,history of ,religion4 #b ,born #dfj ,b4,c4 #c ,lange1 #bnd edit41 p4 #bc4 #d ,born #cdb ,b4,c4 #e ,tennyson's ,lucretius4 #f ,born #ii ,b4,c4 #g ,monro's translation4 ,in his criticism of this work1 ,contemporary ,review1 #ahfg1 ,dr4 ,hayman does not appear to be aware of the really sound and subtile observations on which the reasoning of ,lucretius1 though erroneous1 sometimes rests4 #h ,history of the ,intellectual ,development of ,europe1 p4 #bie4 #i ,history of the ,inductive ,sciences1 vol4 i4 #aj ,depicted with terrible vividness in ,renan's ,antichrist4 #aa ,intellectual ,development of ,europe1 p4 #cei4 #ab ,lange1 #bnd edit4 pp4 #aha1 #ahb4 #ac ,see ,huxley's admirable ,essay on ,descartes4 ,lay ,sermons1 pp4 #hfd1 #cfe4 #ad ,boyle's model of the universe was the ,strasburg clock with an outside ,artificer4 ,goethe1 on the other hand1 sang ',ihm ziemt's die ,welt im ,innern zu bewegen1 ,natur in sich1 sich in ,natur zu hegen4' ,see also ,carlyle1 ,past and ,present1 ,chap4 ,v4 #ae ,only to some2 for there are dignitaries who even now speak of the earth's rocky crust as so much building material prepared for man at the ,creation4 ,surely it is time that this loose language should cease4 #af ,zoonomia1 vol4 i4 pp4 #ejj-eaj4 #ag ,in #ahee ,mr4 ,herbert ,spencer 7,principles of ,psychology1 #bnd edit4 vol4 i4 p4 #dfe7 expressed 'the belief that life under all its forms has arisen by an unbroken evolution1 and through the instrumentality of what are called natural causes4' #ah ,the behaviour of ,mr4 ,wallace in relation to this subject has been dignified in the highest desgree4 #ai ,the first step only towards experimental demonstration has been taken4 ,experiments now begun might1 a couple of centuries hence1 furnish data of incalculable value1 which ought to be supplied to the science of the future4 #bj ,bruno was a ',pantheist1' not an ',atheist' or a ',materialist4' #ba ,examination of ,hamilton1 p4 #aed4 #bb ,bestimmung des ,menschen4 #bc ,in a paper1 at once popular and profound1 entitled ,recent ,progress in the ,theory of ,vision1 contained in the volume of ,lectures by ,helmholtz1 published by ,longmans1 this symbolism of our states of consciousness is also dwelt upon4 ,the impressions of sense are the mere signs of external things4 ,in this paper ,helmholtz contends strongly against the view that the consciousness of space is inborn2 and he evidently doubts the power of the chick to pick up grains of corn without preliminary lessons4 ,on this point1 he says1 further experiments are needed4 ,such experiments have been since made by ,mr4 ,spalding1 aided1 ,i believe1 in some of his observations by the accomplished and deeply lamented ,lady ,amberly2 and they seem to prove conclusively that the chick does not need a single moment's tuition to enable it to stand1 run1 govern the muscles of its eyes1 and to peck4 ,helmholtz1 however1 is contending against the notion of pre-established harmony2 and ,i am not aware of his views as to the organisation of experiences of race or breed4 #bd ,promium to ',gott und ,welt4' #be ,tintern ,abbey4 ,,london3 ,,printed ,,by ,,spottiswoode ,,and ,,co41 ,,new-,,street ,,square ,,and ,,parliament ,,street