There is no such thing as a lovers' oath.

Any city, however small, is in fact divided into two, one the city of the poor, the other of the rich; these are at war with one another.

To fear death, my friends, is only to think ourselves wise without really being wise, for it is to think that we know what we do not know.

Science is nothing but perception.

If you do not take an interest in the affairs of your government, then you are doomed to live under the rule of fools.

It's like this, I think: the excellence of a good body doesn't make the soul good, but the other way around: the excellence of a good soul makes the body as good as it can be.

Of all the things which a man has, next to the gods his soul is the most divine and most truly his own.