5 ideas
13197 | The notion of substance is one of the keys to true philosophy [Leibniz] |
7453 | Galen's medicine followed the mean; each illness was balanced by opposite treatment [Galen, by Hacking] |
1748 | Archelaus was the first person to say that the universe is boundless [Archelaus, by Diog. Laertius] |
13198 | Gravity is within matter because of its structure, and it can be explained. [Leibniz] |
5989 | Archelaus said life began in a primeval slime [Archelaus, by Schofield] |