4 ideas
13197 | The notion of substance is one of the keys to true philosophy [Leibniz] |
468 | Musical performance can reveal a range of virtues [Damon of Ath.] |
13198 | Gravity is within matter because of its structure, and it can be explained. [Leibniz] |
18202 | The concept of a field gradually replaced the substances in explaining relations between charges [Einstein/Infeld] |