Without friends no one would choose to live, though he had all other goods.

For though we love both the truth and our friends, piety requires us to honor the truth first.

The moral virtues, then, are produced in us neither by nature nor against nature. Nature, indeed, prepares in us the ground for their reception, but their complete formation is the product of habit.

Character may almost be called the most effective means of persuasion.

The law is reason, free from passion.

All men by nature desire knowledge.

The soul never thinks without a picture.

If one way be better than another, that you may be sure is nature's way.

The educated differ from the uneducated as much as the living from the dead.

In making a speech one must study three points: first, the means of producing persuasion; second, the language; third the proper arrangement of the various parts of the speech.