6 ideas
| 12712 | Substance is that which can act [Leibniz] |
| 12737 | Nature can be fully explained by final causes alone, or by efficient causes alone [Leibniz] |
| 2384 | Those actions that follow immediately the last appetite are voluntary [Hobbes] |
| 2385 | If a man suddenly develops an intention of doing something, the cause is out of his control, not in his will [Hobbes] |
| 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] |