“Aeschylus at the Isthmian games was watching a boxing-match, and when one of the men was hit the crowd in the theatre burst into a roar. Aeschylus nudged Ion of Chios, and said, “You see what a thing training is; the man who is hit says nothing; it is the spectators who shout.” ”

— Plutarch,  How a Man May Become Aware of His Progress in Virtue.