Combining Texts

All the ideas for 'works (fragments)', 'Springs of Action' and 'Letters to Queen Charlotte'

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7 ideas

6. Mathematics / B. Foundations for Mathematics / 4. Axioms for Number / a. Axioms for numbers
23026 We know mathematical axioms, such as subtracting equals from equals leaves equals, by a natural light [Leibniz]
9. Objects / D. Essence of Objects / 7. Essence and Necessity / b. Essence not necessities
13189 A necessary feature (such as air for humans) is not therefore part of the essence [Leibniz]
10. Modality / D. Knowledge of Modality / 1. A Priori Necessary
19432 Intelligible truth is independent of any external things or experiences [Leibniz]
12. Knowledge Sources / B. Perception / 2. Qualities in Perception / d. Secondary qualities
19430 We know objects by perceptions, but their qualities don't reveal what it is we are perceiving [Leibniz]
12. Knowledge Sources / D. Empiricism / 1. Empiricism
19431 There is nothing in the understanding but experiences, plus the understanding itself, and the understander [Leibniz]
15. Nature of Minds / A. Nature of Mind / 2. Psuche
5880 Xenocrates held that the soul had no form or substance, but was number [Xenocrates, by Cicero]
20. Action / A. Definition of Action / 1. Action Theory
20057 Philosophy of action studies the roles of psychological states in causing behaviour [Mele]