| 15170 | We distinguish species by their nominal essence, not by their real essence [Locke] |
| 16937 | You can't base kinds just on resemblance, because chains of resemblance are a muddle [Quine] |
| 13583 | There might be uninstantiated natural kinds, such as transuranic elements which have never occurred [Ellis] |
| 11860 | Lawlike propensities are enough to individuate natural kinds [Wiggins] |
| 15693 | One sample of gold is enough, but one tree doesn't give the height of trees [Gelman] |
| 6769 | In the Kripke-Putnam view only nuclear physicists can know natural kinds [Bird] |
| 6774 | Darwinism suggests that we should have a native ability to detect natural kinds [Bird] |
| 14956 | Explanation by kinds and by clusters of properties just express the stability of reality [Ladyman/Ross] |
| 13285 | Natural kinds support inductive inferences, from previous samples to the next one [Koslicki] |