Epicurus

Misfortune seldom intrudes upon the wise man; his greatest and highest interests are directed by reason throughout the course of life.

It is impossible to live a pleasant life without living wisely and well and justly. And it is impossible to live wisely and well and justly without living a pleasant life.

Justice... is a kind of compact not to harm or be harmed.

Both old and young alike ought to seek wisdom: the former in order that, as age comes over him, he may be young in good things because of the grace of what has been, and the latter in order that, while he is young, he may at the same time be old, because he has no fear of the things which are to come.

A free life cannot acquire many possessions, because this is not easy to do without servility to mobs or monarchs.

We do not so much need the help of our friends as the confidence of their help in need.