Skip to contentSkip to Braille Studio

Library / Philosophy / A Treatise Concerning the Principles of Human Knowledge / Braille

A Treatise Concerning the Principles of Human Knowledge ⠃⠗⠋ braille edition

Grade 1 — uncontracted, letter-for-letter. Translated on this server by our own braille engine (BRF — Braille Ready Format, Library of Congress fdd000551). View Grade 2 instead.

Download .brf — Grade 2 Download .brf — Grade 1 Plain-text reader .txt

218,077 braille cells · 232 embossed pages at 40×25 · 214 unrepresentable characters omitted

⠀⠊⠝⠉⠇⠥⠙⠊⠝⠛⠀⠠⠠⠎⠏⠊⠗⠊⠞⠀⠕⠗⠀⠞⠓⠊⠝⠅⠊⠝⠛⠀⠞⠓⠊⠝⠛⠎⠀
⠁⠎⠀⠺⠑⠇⠇⠀⠁⠎⠀⠠⠠⠊⠙⠑⠁⠎⠲⠀⠠⠎⠊⠝⠉⠑⠀⠞⠓⠑⠗⠑⠋⠕⠗⠑⠀⠞⠓⠑
⠀⠕⠃⠚⠑⠉⠞⠎⠀⠕⠋⠀⠎⠑⠝⠎⠑⠀⠑⠭⠊⠎⠞⠀⠕⠝⠇⠽⠀⠊⠝⠀⠞⠓⠑⠀
⠍⠊⠝⠙⠂⠀⠁⠝⠙⠀⠁⠗⠑⠀⠺⠊⠞⠓⠁⠇⠀⠞⠓⠕⠥⠛⠓⠞⠇⠑⠎⠎⠀⠁⠝⠙⠀
⠊⠝⠁⠉⠞⠊⠧⠑⠂⠀⠠⠊⠀⠉⠓⠕⠎⠑⠀⠞⠕⠀⠍⠁⠗⠅⠀⠞⠓⠑⠍⠀⠃⠽⠀⠞⠓⠑⠀
⠺⠕⠗⠙⠀⠠⠠⠊⠙⠑⠁⠂⠀⠺⠓⠊⠉⠓⠀⠊⠍⠏⠇⠊⠑⠎⠀⠞⠓⠕⠎⠑⠀
⠏⠗⠕⠏⠑⠗⠞⠊⠑⠎⠲⠀⠀⠼⠙⠚⠲⠀⠠⠠⠞⠓⠑⠀⠠⠠⠑⠧⠊⠙⠑⠝⠉⠑⠀⠠⠠⠕⠋⠀
⠠⠠⠞⠓⠑⠀⠠⠠⠎⠑⠝⠎⠑⠎⠀⠠⠠⠝⠕⠞⠀
⠠⠠⠙⠊⠎⠉⠗⠑⠙⠊⠞⠑⠙⠲⠤⠤⠠⠃⠥⠞⠂⠀⠎⠁⠽⠀⠺⠓⠁⠞⠀⠺⠑⠀⠉⠁⠝⠂⠀
⠎⠕⠍⠑⠀⠕⠝⠑⠀⠏⠑⠗⠓⠁⠏⠎⠀⠍⠁⠽⠀⠃⠑⠀⠁⠏⠞⠀⠞⠕⠀⠗⠑⠏⠇⠽⠂⠀⠓⠑
⠀⠺⠊⠇⠇⠀⠎⠞⠊⠇⠇⠀⠃⠑⠇⠊⠑⠧⠑⠀⠓⠊⠎⠀⠎⠑⠝⠎⠑⠎⠂⠀⠁⠝⠙⠀
⠝⠑⠧⠑⠗⠀⠎⠥⠋⠋⠑⠗⠀⠁⠝⠽⠀⠁⠗⠛⠥⠍⠑⠝⠞⠎⠂⠀⠓⠕⠺⠀
⠏⠇⠁⠥⠎⠊⠃⠇⠑⠀⠎⠕⠑⠧⠑⠗⠂⠀⠞⠕⠀⠏⠗⠑⠧⠁⠊⠇⠀⠕⠧⠑⠗⠀⠞⠓⠑⠀
⠉⠑⠗⠞⠁⠊⠝⠞⠽⠀⠕⠋⠀⠞⠓⠑⠍⠲⠀⠠⠃⠑⠀⠊⠞⠀⠎⠕⠆⠀⠁⠎⠎⠑⠗⠞⠀⠞⠓⠑
⠀⠑⠧⠊⠙⠑⠝⠉⠑⠀⠕⠋⠀⠎⠑⠝⠎⠑⠀⠁⠎⠀⠓⠊⠛⠓⠀⠁⠎⠀⠽⠕⠥⠀
⠏⠇⠑⠁⠎⠑⠂⠀⠺⠑⠀⠁⠗⠑⠀⠺⠊⠇⠇⠊⠝⠛⠀⠞⠕⠀⠙⠕⠀⠞⠓⠑⠀⠎⠁⠍⠑⠲⠀
⠠⠞⠓⠁⠞⠀⠺⠓⠁⠞⠀⠠⠊⠀⠎⠑⠑⠂⠀⠓⠑⠁⠗⠂⠀⠁⠝⠙⠀⠋⠑⠑⠇⠀⠠⠠⠙⠕⠞⠓
⠀⠠⠠⠑⠭⠊⠎⠞⠂⠀⠠⠠⠞⠓⠁⠞⠀⠠⠠⠊⠎⠀⠞⠕⠀⠎⠁⠽⠂⠀⠠⠠⠊⠎⠀
⠠⠠⠏⠑⠗⠉⠑⠊⠧⠑⠙⠀⠠⠠⠃⠽⠀⠠⠠⠍⠑⠂⠀⠠⠊⠀⠝⠕⠀⠍⠕⠗⠑⠀⠙⠕⠥⠃⠞⠀
⠞⠓⠁⠝⠀⠠⠊⠀⠙⠕⠀⠕⠋⠀⠍⠽⠀⠕⠺⠝⠀⠃⠑⠊⠝⠛⠲⠀⠠⠃⠥⠞⠀⠠⠊⠀⠙⠕⠀
⠝⠕⠞⠀⠎⠑⠑⠀⠓⠕⠺⠀⠞⠓⠑⠀⠞⠑⠎⠞⠊⠍⠕⠝⠽⠀⠕⠋⠀⠎⠑⠝⠎⠑⠀⠉⠁⠝⠀
⠃⠑⠀⠁⠇⠇⠑⠛⠑⠙⠀⠁⠎⠀⠁⠀⠏⠗⠕⠕⠋⠀⠋⠕⠗⠀⠞⠓⠑⠀⠑⠭⠊⠎⠞⠑⠝⠉⠑⠀
⠕⠋⠀⠁⠝⠽⠞⠓⠊⠝⠛⠀⠺⠓⠊⠉⠓⠀⠊⠎⠀⠝⠕⠞⠀⠏⠑⠗⠉⠑⠊⠧⠑⠙⠀⠃⠽⠀
⠎⠑⠝⠎⠑⠲⠀⠠⠺⠑⠀⠁⠗⠑⠀⠝⠕⠞⠀⠋⠕⠗⠀⠓⠁⠧⠊⠝⠛⠀⠁⠝⠽⠀⠍⠁⠝⠀
⠞⠥⠗⠝⠀⠠⠠⠎⠉⠑⠏⠞⠊⠉⠀⠁⠝⠙⠀⠙⠊⠎⠃⠑⠇⠊⠑⠧⠑⠀⠓⠊⠎⠀

These are the same pages the .brf download embosses — form-feed breaks and all. BRF opens in braille software (Duxbury, BrailleBlaster), on embossers, and on refreshable displays.