Wisdom cometh by suffering.
The laws of a state change with the changing times.
He hears but half who hears one party only.
And one who is just of his own free will shall not lack for happiness; and he will never come to utter ruin.
Learning is ever in the freshness of its youth, even for the old.
[Hermes addresses Prometheus :] To you, the clever and crafty, bitter beyond all bitterness, who has sinned against the gods in bestowing honors upon creatures of a day--to you, thief of fire, I speak.