While most of those who hold that the whole heaven is finite say that the earth lies at the center, the philosophers of Italy, the so-called Pythagoreans, assert the contrary. They say that in the middle there is fire, and that the earth is one of the stars, and by its circular motion round the center produces night and day.

Moral qualities are so constituted as to be destroyed by excess and by deficiency . . .

We have no evidence as yet about mind or the power to think; it seems to be a widely different kind of soul, differing as what is eternal from what is perishable; it alone is capable of existence in isolation from all other psychic powers.

So we must lay it down that the association which is a state exists not for the purpose of living together but for the sake of noble actions.

Our feelings towards our friends reflect our feelings towards ourselves.

The complete man must work, study and wrestle.

Those who act receive the prizes.