Combining Texts

All the ideas for 'On 'Generation and Corruption'', 'Resurrecting Biological Essentialism' and 'Law and Authority'

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6 ideas

9. Objects / D. Essence of Objects / 10. Essence as Species

17368

Essentialism concerns the nature of a group, not its category [Devitt]

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Things that gradually change, like species, can still have essences [Devitt]

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

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

25. Social Practice / B. Equalities / 1. Grounds of equality

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Only liberty, equality and sympathy can stand up to anti-social people [Kropotkin]

27. Natural Reality / G. Biology / 5. Species

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We name species as small to share properties, but large enough to yield generalisations [Devitt]

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Species are phenetic, biological, niche, or phylogenetic-cladistic [Devitt, by PG]