5 ideas
18487 | We want to know what makes sentences true, rather than defining 'true' [McFetridge] |
10180 | Mathematicians do not study objects, but relations between objects [Poincaré] |
18488 | We normally explain natural events by citing further facts [McFetridge] |
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] |