5 ideas
17750 | The first clear proof of the consistency of the first order predicate logic was in 1928 [Hilbert/Ackermann, by Walicki] |
1757 | The Electra: she knows this man, but not that he is her brother [Eucleides, by Diog. Laertius] |
5845 | Niceratus learnt the whole of Homer by heart, as a guide to goodness [Xenophon] |
3028 | The chief good is unity, sometimes seen as prudence, or God, or intellect [Eucleides] |
5833 | Education is the greatest of human goods [Xenophon] |