10 ideas
| 291 | Don't assume that wisdom is the automatic consequence of old age [Plato] |
| 23476 | Logical constants seem to be entities in propositions, but are actually pure form [Russell] |
| 23477 | We use logical notions, so they must be objects - but I don't know what they really are [Russell] |
| 18273 | Logical truths are known by their extreme generality [Russell] |
| 22315 | There can't be a negative of a complex, which is negated by its non-existence [Potter on Russell] |
| 17368 | Essentialism concerns the nature of a group, not its category [Devitt] |
| 17370 | Things that gradually change, like species, can still have essences [Devitt] |
| 293 | Being unafraid (perhaps through ignorance) and being brave are two different things [Plato] |
| 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] |