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

He who wishes to serve his country must have not only the power to think, but the will to act

A man who really fights for justice must lead a private, not a public, life if he is to survive for even a short time.

Thus rhetoric, it seems, is a producer of persuasion for belief, not for instruction in the matter of right and wrong ... And so the rhetorician's business is not to instruct a law court or a public meeting in matters of right and wrong, but only to make them believe.

Give me a different set of mothers and I will give you a different world

It is as expedient that a wicked man be punished as that a sick man be cured by a physician; for all chastisement is a kind of medicine.

Knowledge becomes evil if the aim be not virtuous.