Just as so many rivers, so many showers of rain from above, so many medicinal springs do not alter the taste of the sea, so the pressure of adversity does not affect the mind of the brave man. For it maintains its balance, and over all that happens it throws its own complexion, because it is more powerful than external circumstances.

Shall I tell you what philosophy holds out to humanity? Counsel...You are called in to help the unhappy.

A young man respects and looks up to his teachers.

If you don't know, ask. You will be a fool for the moment, but a wise man for the rest of your life.

Authority founded on injustice is never of long duration.

Men trust rather to their eyes than to their ears; the effect of precepts is therefore slow and tedious, whilst that of examples is summary and effectual.

If sensuality were happiness, beasts were happier than men; but human felicity is lodged in the soul, not in the flesh.