If a man says that it is right to give every one his due, and therefore thinks within his own mind that injury is due from a just man to his enemies but kindness to his friends, he was not wise who said so, for he spoke not the truth, for in no case has it appeared to be just to injure any one.

There should be no element of slavery in learning. Enforced exercise does no harm to the body, but enforced learning will not stay in the mind. So avoid compulsion, and let your children's lessons take the form of play.

Who are the true philosophers? Those whose passion is to love the truth.

Those who are too smart to engage in politics are punished by being governed by those who are dumber.

Man is a prisoner who has no right to open the door of his prison and run away... A man should wait, and not take his own life until God summons him.

Lord of Lords, grant us the good whether we pray for it or not, but evil keep from us, even though we pray for it.

. . . Then anyone who leaves behind him a written manual, and likewise anyone who receives it, in the belief that such writing will be clear and certain, must be exceedingly simple-minded. . . .