5 ideas
| 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] |
| 23812 | Force is what turns man into a thing, and ultimately into a corpse [Weil] |
| 23813 | Only people who understand force, and don't respect it, are capable of justice [Weil] |
| 1558 | Clearly the gods ignore human affairs, or they would have given us justice [Thrasymachus] |