4 ideas
8728 | Intuitionist mathematics deduces by introspective construction, and rejects unknown truths [Brouwer] |
15990 | Every individual thing which exists has an essence, which is its internal constitution [Locke] |
15994 | If it is knowledge, it is certain; if it isn't certain, it isn't knowledge [Locke] |
21994 | The handmill gives feudalism, the steam mill capitalism [Marx] |