4 ideas
10190 | From the axiomatic point of view, mathematics is a storehouse of abstract structures [Bourbaki] |
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] |
5883 | Pherecydes was the first to say that the soul is eternal [Pherecydes, by Cicero] |