by John Locke



Dedication to Lord Pembroke

Epistle to the Reader (The Forward)

BOOK I - Of Innate Notions

  1. Introduction
  2. No Innate Speculative Principles
  3. No Innate Practical Principles
  4. Other Proofs Against Innate Principles

BOOK II - Of Ideas

  1. Of Ideas in General
  2. Of Simple Ideas
  3. Of Ideas of one Sense
  4. Of Solidity
  5. Of Simple Ideas of More Than One Sense
  6. Of Simple Ideas of Reflection
  7. Of Simple Ideas both of Sensation and Reflection
  8. Other Considerations Concerning Simple Ideas
  9. Of Perception
  10. Of Retention
  11. Of Discerning
  12. Of Complex Ideas
  13. Of Space, and its Simple Modes
  14. Of Duration
  15. Of Extension and Duration Considered Together
  16. Of Number
  17. Of Infinity
  18. Of Other Simple Modes
  19. Of the Modes of Thinking
  20. Of the Modes of Pleasure and Pain
  21. Of Power
  22. Of Mixed Modes
  23. Of the Complex Ideas of Substance
  24. Of the Collective Ideas of Substances
  25. Of Relation
  26. Of Cause and Effect, and other Relations
  27. Of Identity and Diversity
  28. Of Other Relations
  29. Of Clear and Distinct, Obscure and Confused Ideas
  30. Of Real and Fantastical Ideas
  31. Of Adequate and inadequate Ideas
  32. Of True and False Ideas
  33. Of the Association of Ideas

BOOK III - Of Words

  1. Of Words and Language in General
  2. Of the Signification of Words
  3. Of General Terms
  4. Of the names of Simple Ideas
  5. Of the Names of Mixed Modes and Relations
  6. Of the Name of Substances
  7. Of Particles
  8. Of Abstract and Concrete Terms
  9. Of the Imperfection of Words
  10. Of the Abuse of Words
  11. Of the Remedies of the Foregoing Imperfections and Abuses

BOOK IV - Of Knowledge and Opinion

  1. Of knowledge in General
  2. Of the Degrees of our Knowledge
  3. Of the Extent of Human Knowledge
  4. Of the Reality of our Knowledge
  5. Of Truth in General
  6. Of Universal Propositions, their Truth and Certainty
  7. Of Maxims
  8. Of Trifling Propositions
  9. Of our Knowledge of Existence
  10. Of the Existence of a God
  11. Of the Knowledge of the Existence of Other Things
  12. Of the Improvement of our Knowledge
  13. Some Other Considerations Concerning our Knowledge
  14. Of Judgement
  15. Of Probability
  16. Of the Degrees of Asent
  17. Of Reason
  18. Of Faith and Reason, as Contra Distinguished
  19. Of Enthusiasm
  20. Of Wrong Assent, or Error
  21. The Division of the Sciences