Combining Texts

All the ideas for 'Natural Kinds and Biological Realism', 'The Origin of the Species' and 'Moral Arguments'

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8 ideas

14. Science / D. Explanation / 3. Best Explanation / a. Best explanation
A false theory could hardly rival the explanatory power of natural selection [Darwin]
22. Metaethics / A. Ethics Foundations / 2. Source of Ethics / k. Ethics from nature
Moral judgements need more than the relevant facts, if the same facts lead to 'x is good' and 'x is bad' [Foot]
22. Metaethics / B. Value / 1. Nature of Value / b. Fact and value
Whether someone is rude is judged by agreed criteria, so the facts dictate the value [Foot]
We can't affirm a duty without saying why it matters if it is not performed [Foot]
Facts and values are connected if we cannot choose what counts as evidence of rightness [Foot]
26. Natural Theory / B. Natural Kinds / 1. Natural Kinds
Some kinds are very explanatory, but others less so, and some not at all [Devitt]
27. Natural Reality / G. Biology / 5. Species
Species pluralism says there are several good accounts of what a species is [Devitt]
The higher categories are not natural kinds, so the Linnaean hierarchy should be given up [Devitt]