Aeschylus

He who learns must suffer. And even in our sleep pain that cannot forget falls drop by drop upon the heart, and in our own despair, against our will, comes wisdom to us by the awful grace of God.

O Death the Healer, scorn thou not, I pray,
To come to me: of cureless ills thou art
The one physician. Pain lays not its touch
Upon a corpse.

I would far rather be ignorant than wise in the foreboding of evil.

He who learns must suffer, and, even in our sleep, pain that cannot forget falls drop by drop upon the heart, and in our own despair, against our will, comes wisdom to us by the awful grace of God.

For somehow this is tyranny's disease, to trust no friends.

Words are the physicians of the mind diseased.

Time as he grows old teaches all things.

It is in the character of very few men to honor without envy a friend who has prospered.

Only when man's life comes to its end in prosperity can one call that man happy.

Death is better, a milder fate than tyranny.

I know how men in exile feed on dreams of hope.

Destiny waits alike for the free man as well as for him enslaved by another's might.

His resolve is not to seem, but to be, the best.

It is a profitable thing, if one is wise, to seem foolish.

In war, truth is the first casualty.