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The Critique of Pure Reason

Immanuel Kant

The Critique of Pure Reason is 208,618 words — about 13h 54m at 250 words per minute, across 25 chapters. Measure your own speed and read it free, here.

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Public domain 25 chapters
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How it opens

Human reason, in one sphere of its cognition, is called upon to consider questions, which it cannot decline, as they are presented by its own nature, but which it cannot answer, as they transcend every faculty of the mind.…

Details

  • AuthorImmanuel Kant
  • SourceProject Gutenberg #4280
  • Length208,618 words · 13h 54m of reading
  • Chapters25
  • DictionaryNot yet generated
  • CopyrightPublic domain in the United States
  • Source checked2026-08-28

Contents

25 chapters

Recovered from the original source text, so you can open the book at any of them.

  1. 01Introduction
  2. 02SECTION I. OF SPACE
  3. 03SECTION II. OF TIME
  4. 04II. Of Transcendental Logic
  5. 05What Objective Unity of Self-consciousness is. § 14
  6. 06Observation. § 17
  7. 07BOOK II. Analytic of Principles
  8. 08SECOND DIVISION—TRANSCENDENTAL LOGIC
  9. 09Section III. System of Transcendental Ideas.
  10. 10Section II. Antithetic of Pure Reason.
  11. 11Section VII. Critical Solution of the Cosmological Problem.
  12. 12Section I. Of the Ideal in General.
  13. 13Chapter I. The Discipline of Pure Reason.
  14. 14Section III. The Discipline of Pure Reason in Hypothesis.
  15. 15Section I. Of the Ultimate End of the Pure Use of Reason.
  16. 16PREFACE TO THE FIRST EDITION 1781
  17. 17PREFACE TO THE SECOND EDITION 1787
  18. 18Second Part—TRANSCENDENTAL LOGIC
  19. 19BOOK I. Analytic of Conceptions. § 2
  20. 20Introductory § 3
  21. 21TABLE OF THE CATEGORIES
  22. 22What Objective Unity of Self-consciousness is § 14
  23. 23Observation § 17
  24. 24BOOK II. Analytic of Principles
  25. 25PROOF

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