6 ideas
| 594 | Speusippus suggested underlying principles for every substance, and ended with a huge list [Speussipus, by Aristotle] |
| 579 | Cratylus said you couldn't even step into the same river once [Cratylus, by Aristotle] |
| 19696 | There are reasons 'for which' a belief is held, reasons 'why' it is believed, and reasons 'to' believe it [Neta] |
| 19697 | The basing relation of a reason to a belief should both support and explain the belief [Neta] |
| 578 | Cratylus decided speech was hopeless, and his only expression was the movement of a finger [Cratylus, by Aristotle] |
| 2632 | Speusippus said things were governed by some animal force rather than the gods [Speussipus, by Cicero] |