4 ideas
10121 | Contradiction is not a sign of falsity, nor lack of contradiction a sign of truth [Pascal] |
13197 | The notion of substance is one of the keys to true philosophy [Leibniz] |
3016 | Even the gods cannot strive against necessity [Pittacus, by Diog. Laertius] |
13198 | Gravity is within matter because of its structure, and it can be explained. [Leibniz] |