An Essay Concerning Humane Understanding

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An Essay Concerning Humane Understanding (1690)
by John Locke
1926An Essay Concerning Humane Understanding1690John Locke




Humane Understanding.

In Four BOOKS.

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


Printed by Eliz. Holt, for Thomas Basset, at the George in Fleetstreet, near St. Dunstan's Church. MDCXC.

Chapters (not listed in original)



Of Innate Notions.
1. Introduction.
2. No innate speculative Principles.
3. No innate practical Principles.
4. Other Proofs against innate Principles.

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 Reflexion.
7. Of simple Ideas both of Sensation and Reflexion.
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 Substances.
24. Of the collective Ideas of Sub∣stances.
25. Of Relation.
26. Of Cause and Effect, and other Relations
27. Of other Relations.
28. Of clear and distinct, obscure and confused Ideas.
29. Of real and phantastical Ideas.
30. Of adequate and inadequate Ideas.
31. Of true and false Ideas.

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 Names of Substances.
7. Of abstract and concrete Terms.
8. Of the Imperfection of Words.
9. Of the Abuse of Words.
10. Of the Remedies of the foregoing Imperfections and Abuses.
Of Knowledge and Opinion.
1. Of Knowledge in general.
2. Of the Degrees of our Knowledge.
3. Of the extent of Humane 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 Judgment.
15. Of Probability.
16. Of the Degrees of Assent.
17. Of Reason.
18. Of Faith and Reason, as contradistinguished.
19. Of wrong Assent, or Errour:
20. The Division of the Sciences.

This work was published before January 1, 1929, and is in the public domain worldwide because the author died at least 100 years ago.

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