4 ideas
| 14248 | We could accept the integers as primitive, then use sets to construct the rest [Cohen] |
| 594 | Speusippus suggested underlying principles for every substance, and ended with a huge list [Speussipus, by Aristotle] |
| 7811 | Sophoclean heroes die terrible deaths when they oppose the new Athenian values [Sophocles, by Grayling] |
| 2632 | Speusippus said things were governed by some animal force rather than the gods [Speussipus, by Cicero] |