4 ideas
16728 | Logicians acknowledge too few things, while others acknowledge too many [Fitzralph] |
13197 | The notion of substance is one of the keys to true philosophy [Leibniz] |
8433 | There are few traces of an event before it happens, but many afterwards [Lewis, by Horwich] |
13198 | Gravity is within matter because of its structure, and it can be explained. [Leibniz] |