Combining Texts

All the ideas for 'On Motion', 'Reply to Professor Frankena' and 'On 'Generation and Corruption''

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

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3 ideas

12. Knowledge Sources / B. Perception / 2. Qualities in Perception / d. Secondary qualities

16721

Changes in secondary qualities are caused by changes in primary qualities [Giles of Orleans]

23. Ethics / D. Deontological Ethics / 4. Categorical Imperative

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Moral judgements are hypothetical, because they depend on interests and desires [Foot]

27. Natural Reality / B. Modern Physics / 1. Relativity / a. Special relativity

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Motion is not absolute, but consists in relation [Leibniz]