Geometry will draw the soul toward truth and create the spirit of philosophy.

Nothing in the affairs of men is worthy of great anxiety.

It is better to be wise, and not to seem so, than to seem wise, and not be so; yet men, for the most part, desire the contrary.

The right question is usually more important than the right answer.

To honor with hymns and panegyrics those who are still alive is not safe; a man should run his course and make a fair ending, and then we will praise him; and let praise be given equally to women as well as men who have been distinguished in virtue.

False words are not only evil in themselves, but they infect the soul with evil.

Necessity is literally the mother of invention.