Combining Texts

All the ideas for 'On Sufficient Reason', 'Aristotle and Descartes on Matter' and 'Improvement of Understanding'

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5 ideas

2. Reason / B. Laws of Thought / 1. Laws of Thought

19404

Necessities rest on contradiction, and contingencies on sufficient reason [Leibniz]

2. Reason / D. Definition / 2. Aims of Definition

16541

All the intrinsic properties of a thing should be deducible from its definition [Spinoza]

14. Science / D. Explanation / 2. Types of Explanation / k. Explanations by essence

13073

To understand the properties we must know the essence, as with a circle [Spinoza]

26. Natural Theory / A. Speculations on Nature / 6. Early Matter Theories / b. Prime matter

19399

Prime matter is nothing when it is at rest [Leibniz]

26. Natural Theory / D. Laws of Nature / 8. Scientific Essentialism / c. Essence and laws

19403

Each of the infinite possible worlds has its own laws, and the individuals contain those laws [Leibniz]