Let no young man delay the study of philosophy, and let no old man become weary of it; for it is never too early nor too late to care for the well-being of the soul.

Only the just man enjoys peace of mind.

Let no one be slow to seek wisdom when he is young nor weary in the search of it when he has grown old. For no age is too early or too late for the health of the soul.

The fool, with all his other faults, has this also, he is always getting ready to live.

Of all the things which wisdom provides to make us entirely happy, much the greatest is the possession of friendship.

Pleasure is the first good. It is the beginning of every choice and every aversion. It is the absence of pain in the body and of troubles in the soul.

The summit of pleasure is the elimination of all that gives pain.