An Essay Concerning Humane Understanding

IN FOUR BOOKS

By John Locke

Quam bellum est velle confiteri potius nescire quod nescias, quam ista effutientem nauseare, atque ipsum sibi displicere!
Cic. de Natur. Deor. l. 1.

LONDON:
Printed by Eliz. Holt, for Thomas Basset, at the George in Fleet Street, near St. Dunstan’s Church.

MDCXC

CONTENTS

[THE EPISTLE TO THE READER]
[ESSAY CONCERNING HUMANE UNDERSTANDING.]
[BOOK I NEITHER PRINCIPLES NOR IDEAS ARE INNATE]
[CHAPTER I. INTRODUCTION.]
[CHAPTER II. NO INNATE SPECULATIVE PRINCIPLES.]
[CHAPTER III. NO INNATE PRACTICAL PRINCIPLES]
[CHAPTER IV. OTHER CONSIDERATIONS CONCERNING INNATE PRINCIPLES, BOTH SPECULATIVE AND PRACTICAL.]
[BOOK II OF IDEAS]
[CHAPTER I. OF IDEAS IN GENERAL, AND THEIR ORIGINAL.]
[CHAPTER II. OF SIMPLE IDEAS.]
[CHAPTER III. OF SIMPLE IDEAS OF SENSE.]
[CHAPTER IV. IDEA 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 FURTHER CONSIDERATIONS CONCERNING OUR SIMPLE IDEAS OF SENSATION.]
[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. COMPLEX IDEAS OF SIMPLE MODES:—AND FIRST, OF THE SIMPLE MODES OF IDEA OF SPACE.]
[CHAPTER XIV. IDEA OF DURATION AND ITS SIMPLE MODES.]
[CHAPTER XV. IDEAS OF DURATION AND EXPANSION, CONSIDERED TOGETHER.]
[CHAPTER XVI. IDEA OF NUMBER.]
[CHAPTER XVII. OF INFINITY.]
[CHAPTER XVIII. 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.]