4 ideas
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] |
604 | Knowledge is mind and knowing 'cohabiting' [Lycophron, by Aristotle] |
19436 | Bare or primary matter is passive; it is clothed or secondary matter which contains action [Leibniz] |