5 ideas
16541 | All the intrinsic properties of a thing should be deducible from its definition [Spinoza] |
9807 | In pursuing truth, anything less certain than mathematics is a waste of time [Descartes] |
13073 | To understand the properties we must know the essence, as with a circle [Spinoza] |
1748 | Archelaus was the first person to say that the universe is boundless [Archelaus, by Diog. Laertius] |
5989 | Archelaus said life began in a primeval slime [Archelaus, by Schofield] |