BOOK I.

OF IDEAS IN GENERAL.

CHAP. I. OF THE FUNDAMENTAL ANTITHESIS OF PHILOSOPHY 23

_Sect._ 1. _Thoughts and Things_ -- 2. _Necessary and Experiential Truths_ 25 3. _Deduction and Induction_ 27 4. _Theories and Facts_ 29 5. _Ideas and Sensations_ 30 6. _Reflexion and Sensation_ 33 7. _Subjective and Objective_ 35 8. _Matter and Form_ 38 9. _Man the Interpreter of Nature_ 41 10. _The Fundamental Antithesis is inseparable_ 43 11. _Successive Generalization_ 49 {viii}

CHAP. II. OF TECHNICAL TERMS 54

_Art._ 1. Examples. 2. Use of Terms.

CHAP. III. OF NECESSARY TRUTHS 57

_Art._ 1. The two Elements of Knowledge, 2. Shown by necessary Truths. 3. Examples of necessary Truths in numbers. 4. The opposite cannot be distinctly conceived. 5. Other Examples. 6. Universal Truths.

CHAP. IV. OF EXPERIENCE 65

_Art._ 1. Experience cannot prove necessary Truths, 2. Except when aided by Ideas.

CHAP. V. OF THE GROUNDS OF NECESSARY TRUTHS 69

_Art._ 1. These Grounds are Fundamental Ideas. 2. These are to be reviewed. 3. Definitions and Axioms. 4. Syllogism, 5. Produces no new Truths. 6. Axioms needed. 7. Axioms depend on Ideas: 8. So do Definitions. 9. Idea not completely expressed.

CHAP. VI. THE FUNDAMENTAL IDEAS ARE NOT DERIVED FROM EXPERIENCE 76

_Art._ 1. No connexion observed. 2. Faculties implied in observation. 3. We are to examine our Faculties.

CHAP. VII. OF THE PHILOSOPHY OF THE SCIENCES 81

Sciences arranged according to Ideas. {ix}