4 ideas
13197 | The notion of substance is one of the keys to true philosophy [Leibniz] |
2667 | A false object might give the same presentation as a true one [Arcesilaus, by Cicero] |
7667 | There are two sides to men - the pleasantly social, and the violent and creative [Diderot, by Berlin] |
13198 | Gravity is within matter because of its structure, and it can be explained. [Leibniz] |