Combining Texts

All the ideas for 'Locke on Essences and Kinds', 'The Life of Reason' and 'Inventing Logical Necessity'

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7 ideas

1. Philosophy / C. History of Philosophy / 1. History of Philosophy

8000	He who is ignorant of the history of philosophy is doomed to repeat it [Santayana, by MacIntyre]

9. Objects / D. Essence of Objects / 13. Nominal Essence

15642

If kinds depend only on what can be observed, many underlying essences might produce the same kind [Eagle]

15645

Nominal essence are the observable properties of things [Eagle]

15643

Nominal essence mistakenly gives equal weight to all underlying properties that produce appearances [Eagle]

10. Modality / A. Necessity / 6. Logical Necessity

12189

Logical necessity involves a decision about usage, and is non-realist and non-cognitive [Wright,C, by McFetridge]

19. Language / A. Nature of Meaning / 7. Meaning Holism / b. Language holism

7320	Holism cannot give a coherent account of scientific methodology [Wright,C, by Miller,A]

26. Natural Theory / B. Natural Kinds / 4. Source of Kinds

15641

Kinds are fixed by the essential properties of things - the properties that make it that kind of thing [Eagle]