4 ideas
6408 | Russell needed three extra axioms to reduce maths to logic: infinity, choice and reducibility [Grayling] |
6414 | Two propositions might seem self-evident, but contradict one another [Grayling] |
1590 | The just man does not harm his enemies, but benefits everyone [Plato] |
3032 | I can form no notion of what the good is [Amphis] |