恶人害贤者，犹仰天而唾，
唾不至天，还从已堕；
逆风扬尘，
尘不至彼，还坌己身。
贤不可悔，祸必灭己。《佛说四十二章经》
Evil-doers who denounce the wise resemble a person who spits against the sky;
the spittle will never reach the sky, but comes down on himself.
Evil-doers again resemble a man who stirs the dust against the wind; the dust is never raised without doing him injury.
Thus, the wise will never be hurt, but the curse is sure to destroy the evil-doers themselves.
《the Sutra of Forty-two Chapters》
