7 ideas
| 17368 | Essentialism concerns the nature of a group, not its category [Devitt] |
| 17370 | Things that gradually change, like species, can still have essences [Devitt] |
| 468 | Musical performance can reveal a range of virtues [Damon of Ath.] |
| 20972 | Joule showed that energy converts to heat, and heat to energy [Joule, by Papineau] |
| 20645 | Heat is a state of vibration, not a substance [Joule] |
| 17369 | We name species as small to share properties, but large enough to yield generalisations [Devitt] |
| 17367 | Species are phenetic, biological, niche, or phylogenetic-cladistic [Devitt, by PG] |