4 ideas
13166 | Essences are no use in mathematics, if all mathematical truths are necessary [Mancosu] |
74 | Even God could not undo what has been done [Agathon] |
5845 | Niceratus learnt the whole of Homer by heart, as a guide to goodness [Xenophon] |
5833 | Education is the greatest of human goods [Xenophon] |