Those then who know not wisdom and virtue, and are always busy with gluttony and sensuality, go down and up again as far as the mean; and in this region they move at random throughout life, but they never pass into the true upper world; thither they neither look, nor do they ever find their way, neither are they truly filled with true being, nor do they ever taste of pure and abiding pleasure.

I know that I am intelligent, because I know that I know nothing.

To fear death, gentlemen, is no other than to think oneself wise when one is not, to think one knows what one does not know.

Fear of women love more than hate the man.

To be uncertain is to be uncomfortable, but to be certain is to be ridiculous.

He is a man of courage who does not run away, but remains at his post and fights against the enemy.

I know what I do not know.