4 ideas
15034 | Are genera and species real or conceptual? bodies or incorporeal? in sensibles or separate from them? [Porphyry] |
13197 | The notion of substance is one of the keys to true philosophy [Leibniz] |
3284 | There is no one theory of how to act (or what to believe) [Nagel] |
13198 | Gravity is within matter because of its structure, and it can be explained. [Leibniz] |