No man has a right to be an amateur in the matter of physical training

May I consider the wise man rich, and may I have such wealth as only the self-restrained man can bear or endure.

Virtue does not come from wealth, but wealth, and every other good thing which men have comes from virtue.

To be uncertain is to be uncomfortable, but to be certain is to be ridiculous.

The alphabet will create forgetfulness in the learners' souls. They will trust the written characters and not remember themselves.

...one thing I am ready to fight for as long as I can, in word and act: that is, that we shall be better, braver and more active men if we believe it right to look for what we don't know than if we believe there is no point in looking because what we don't know we can never discover.

The right way to begin is to pay attention to the young, and make them just as good as possible.