There are innumerable worlds of different sizes. In some there is neither sun not moon, in others they are larger than in ours and others have more than one. These worlds are at irregular distances, more in one direction and less in another, and some are flourishing, others declining. Here they come into being, there they die, and they are distroyed by collision with one another. Some of the worlds have no animal or vegetable life nor any water.

To a wise and good man the whole earth is his fatherland.

Some men are masters of cities, but are enslaved to women.

The pride of youth is in strength and beauty, the pride of old age is in discretion.

The brave man is not only he who overcomes the enemy, but he who is stronger than pleasures.

Immoderate desire is the mark of a child, not a man.

The man who is fortunate in his choice of son-in-law gains a son; the man unfortunate in his choice loses his daughter also.