Let no one destitute of geometry enter my doors.

Of all the animals, the boy is the most unmanageable, inasmuch as he has the fountain of reason in him not yet regulated.

Lack of activity destroys the good condition of every human being

Both poverty and wealth, therefore, have a bad effect on the quality of the work and the workman himself. Wealth and poverty, I answered. One produces luxury and idleness and a passion for novelty, the other meanness and bad workmanship and revolution into the bargain.

The penalty that good men pay for not being interested in politics is to be governed by men worse than themselves.

Truth is the beginning of every good to the gods, and of every good to man.

The judge should not be young, he should have learned to know evil, not from his own soul, but from late and long observation of the nature of evil in others.