A man becomes a friend whenever being loved he loves in return.

There are no experienced young people. Time makes experience.

It is clear, then, that wisdom is knowledge having to do with certain principles and causes. But now, since it is this knowledge that we are seeking, we must consider the following point: of what kind of principles and of what kind of causes is wisdom the knowledge?

Education is an ornament in prosperity and a refuge in adversity.

For it is owing to their wonder that men both now begin and at first began to philosophize... They were pursuing science in order to know, and not for any utilitarian end.

Poetry is finer and more philosophical than history; for poetry expresses the universal, and history only the particular.

Temperance is a mean with regard to pleasures.