Combining Texts

All the ideas for 'Lectures on the History of Philosophy', 'Questions on Aristotle's Posterior Analytics' and 'Explanation in Mathematics'

expand these ideas     |    start again     |     specify just one area for these texts

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3 ideas

1. Philosophy / D. Nature of Philosophy / 3. Philosophy Defined

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Philosophy is the conceptual essence of the shape of history [Hegel]

9. Objects / D. Essence of Objects / 7. Essence and Necessity / b. Essence not necessities

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Essences are no use in mathematics, if all mathematical truths are necessary [Mancosu]

12. Knowledge Sources / B. Perception / 2. Qualities in Perception / b. Primary/secondary

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Why can't we deduce secondary qualities from primary ones, if they cause them? [Buridan]