11 ideas
| 19404 | Necessities rest on contradiction, and contingencies on sufficient reason [Leibniz] |
| 17743 | De Morgan introduced a 'universe of discourse', to replace Boole's universe of 'all things' [De Morgan, by Walicki] |
| 3546 | 'Phronesis' should translate as 'practical intelligence', not as prudence [Annas] |
| 3547 | Epicureans achieve pleasure through character development [Annas] |
| 3543 | Cyrenaics pursue pleasure, but don't equate it with happiness [Annas] |
| 3541 | Ancient ethics uses attractive notions, not imperatives [Annas] |
| 3550 | Principles cover life as a whole, where rules just cover actions [Annas] |
| 3551 | Virtue theory tries to explain our duties in terms of our character [Annas] |
| 3552 | If excessively good actions are admirable but not required, then duty isn't basic [Annas] |
| 3542 | We should do good when necessary, not maximise it [Annas] |
| 19403 | Each of the infinite possible worlds has its own laws, and the individuals contain those laws [Leibniz] |