5 ideas
594 | Speusippus suggested underlying principles for every substance, and ended with a huge list [Speussipus, by Aristotle] |
22745 | Pherecydes said the first principle and element is earth [Pherecydes, by Sext.Empiricus] |
13605 | Gravity isn't a force, because it produces effects without diminishing [Mayer] |
2632 | Speusippus said things were governed by some animal force rather than the gods [Speussipus, by Cicero] |
5883 | Pherecydes was the first to say that the soul is eternal [Pherecydes, by Cicero] |