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 2 — contracted English braille (EBAE-compatible subset). Translated on this server by our own braille engine (BRF — Braille Ready Format, Library of Congress fdd000551). View Grade 1 instead.

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

177,817 braille cells · 188 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.