4 ideas
| 1556 | By nature people are close to one another, but culture drives them apart [Hippias] |
| 7811 | Sophoclean heroes die terrible deaths when they oppose the new Athenian values [Sophocles, by Grayling] |
| 15150 | The properties of an electron can't be explained just as 'clustering' [Chakravartty on Boyd] |
| 15149 | Properties cluster together, either because of intrinsic relations, or because of an underlying process [Boyd, by Chakravartty] |