A tragedy is that moment where the hero comes face to face with his true identity.

Plato is my friend, but truth is a better friend.

Hippocrates is an excellent geometer but a complete fool in everyday affairs.

If they do not share equally enjoyments and toils, those who labor much and get little will necessarily complain of those who labor little and receive or consume much. But indeed there is always a difficulty in men living together and having all human relations in common, but especially in their having common property.

Since the whole city has one end, it is manifest that education should be one and the same for all, and that it should be public, and not private - not as at present, when every one looks after his own children separately, and gives them separate instruction of the sort which he thinks best; the training in things which are of common interest should be the same for all. Neither must we suppose that any one of the citizens belongs to himself, for they all belong to the state, and are each of them a part of the state, and the care of each part is inseparable from the care of the whole.

In order to be effective you need not only virtue but also mental strength.

The shape of the heaven is of necessity spherical; for that is the shape most appropriate to its substance and also by nature primary.