4 ideas
16635 | Incorporeal substances are powers or forces [Descartes, by Pasnau] |
9141 | Abstraction theories build mathematics out of second-order equivalence principles [Cook/Ebert] |
20239 | Unlike us, the early Greeks thought envy was a good thing, and hope a bad thing [Hesiod, by Nietzsche] |
16684 | Impenetrability only belongs to the essence of extension [Descartes] |