"When an archer is shooting for nothing,
he has all his skill.
If he shoots for a brass buckle, he is already nervous.
If he shoots for a prize of gold, he goes blind or sees two targets - He is out of his mind!
His skill has not changed. But the prize divides him. He cares. He thinks more of winning than of shooting-
And the need to win drains him of power"
(c.360 BC - c. 275 BC)