6 ideas
22026 | Philosophy is homesickness - the urge to be at home everywhere [Novalis] |
9565 | Zermelo made 'set' and 'member' undefined axioms [Zermelo, by Chihara] |
3339 | For Zermelo's set theory the empty set is zero and the successor of each number is its unit set [Zermelo, by Blackburn] |
16597 | Quantity is the capacity to be divided [Digby] |
19591 | Desire for perfection is an illness, if it turns against what is imperfect [Novalis] |
16731 | Colours arise from the rarity, density and mixture of matter [Digby] |