An Essay concerning Human Understanding

An Essay concerning Human Understanding

by John Locke

Preface by The Editor
The Life of the Author
To the right honourable Thomas, Earl of Pembroke and Montgomery,
Epistle to The Reader

BOOK I.

Chapter I.: Introduction.
Chapter II.: No Innate Principles in the Mind.
Chapter III.: No Innate Practical Principles.
Chapter IV.: Other Considerations concerning Innate Principles, both Speculative and Practical.

Chapter I.: Of Ideas in general, and their Original.
Chapter II.: Of Simple Ideas.
Chapter III.: Of Ideas of one Sense.
Chapter IV.: Of Solidity.
Chapter V.: Of Simple Ideas of divers Senses.
Chapter VI.: Of Simple Ideas of Reflection.
Chapter VII.: Of Simple Ideas of both Sensation and Reflection.
Chapter VIII.: Some farther Considerations concerning our Simple Ideas.
Chapter IX.: Of Perception.
Chapter X.: Of Retention.
Chapter XI.: Of Discerning, and other Operations of the Mind.
Chapter XII.: Of Complex Ideas.
Chapter XIII.: Of Simple Modes, and first of the Simple Modes of Space.
Chapter XIV.: Of Duration, and its simple Modes.
Chapter XV.: Of Duration and Expansion, considered together.
Chapter XVI.: Of Number.
Chapter XVII.: Of Infinity.
Chapter XVIII.: Of other Simple Modes.
Chapter XIX.: Of the Modes of Thinking.
Chapter XX.: Of Modes of Pleasure and Pain.
Chapter XXI.: Of Power.
Chapter XXII.: Of mixed Modes.
Chapter XXIII.: Of our complex Ideas of Substances.
Chapter XXIV.: Of collective Ideas of Substances.
Chapter XXV.: Of Relation.
Chapter XXVI.: Of Cause and Effect, and other Relations.
Chapter XXVII.: Of Identity and Diversity.
Chapter XXVIII.: Of other Relations.
Chapter XXIX.: Of Clear and Obscure, Distinct and Confused Ideas.
Chapter XXX.: Of Real and Fantastical Ideas.
Chapter XXXI.: Of Adequate and Inadequate Ideas.
Chapter XXXII.: Of true and false Ideas.
Chapter XXXIII.: Of the Association of Ideas.

Chapter I.: Of Words or Language in general.
Chapter II.: Of the Signification of Words.
Chapter III.: Of General Terms.
Chapter IV.: Of the Names of Simple Ideas.
Chapter V.: Of the Names of mixed Modes and Relations.
Chapter VI.: Of the Names of Substances.
Chapter VII.: Of Particles.
Chapter VIII.: Of Abstract and Concrete Terms.
Chapter IX.: Of the Imperfection of Words.
Chapter X.: Of the Abuse of Words.
Chapter XI.: Of the Remedies of the foregoing Imperfections and Abuses.

Chapter I.: Of Knowledge in General.
Chapter II.: Of the Degrees of our Knowledge.
Chapter III.: Of the Extent of Human Knowledge.
Chapter IV.: Of the Reality of Knowledge.
Chapter V.: Of Truth in General.
Chapter VI.: Of Universal Propositions, their Truth and Certainty.
Chapter VII.: Of Maxims.
Chapter VIII.: Of Trifling Propositions.
Chapter IX.: Of our Knowledge of Existence.
Chapter X.: Of our Knowledge of the Existence of a God.
Chapter XI.: Of our Knowledge of the Existence of other Things.
Chapter XII.: Of the Improvement of our Knowledge.
Chapter XIII.: Some farther Considerations concerning our Knowledge.
Chapter XIV.: Of Judgment.
Chapter XV.: Of Probability.
Chapter XVI.: Of the Degrees of Assent.
Chapter XVII.: Of Reason.
Chapter XVIII.: Of Faith and Reason, and their distinct Provinces.
Chapter XIX.: Of Enthusiasm.
Chapter XX.: Of wrong Assent, or Errour.
Chapter XXI.: Of the Division of the Sciences.

Scientia pigeon est