All is vanity.

There is nothing new under the sun.

Give thy servant an understanding heart to judge thy people, that I may discern between good and bad.

Even among barbarians, pride sometimes yields to wisdom, and Ares stands in awe of the Muses.

-- Posidonius

Do not say a little in many words, but a great deal in few.

-- Pythagoras

I know that I do not know.

-- Plato

A free man thinks of nothing less than of death, and his wisdom is a meditation not on death but on life.

-- Benedictus de Spinoza

The art of being wise is the art of knowing what to overlook.

-- William James