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.