When a man's eyes are sore his friends do not let him finger them, however much he wishes to, nor do they themselves touch the inflammation: But a man sunk in grief suffers every chance comer to stir and augment his affliction like a running sore; and by reason of the fingering and consequent irritation it hardens into a serious and intractable evil.
PlutarchFor he who gives no fuel to fire puts it out, and likewise he who does not in the beginning nurse his wrath and does not puff himself up with anger takes precautions against it and destroys it.
Plutarch