7 ideas
| 21375 | Reason can be vicious, and great crimes have to be rational [Schopenhauer] |
| 21379 | Man's three basic ethical incentives are egoism, malice and compassion [Schopenhauer] |
| 7294 | No crime and no punishment without a law [Roman law] |
| 21376 | Philosophy treats animals as exploitable things, ignoring the significance of their lives [Schopenhauer] |
| 17371 | Some kinds are very explanatory, but others less so, and some not at all [Devitt] |
| 17372 | The higher categories are not natural kinds, so the Linnaean hierarchy should be given up [Devitt] |
| 17373 | Species pluralism says there are several good accounts of what a species is [Devitt] |