“I and the public know
What all schoolchildren learn,
Those to whom evil is done
Do evil in return.”
Source: September 1, 1939 (1939), Lines 19–22
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W. H. Auden 122
Anglo-American poet 1907–1973Related quotes

“Those who corrupt the public mind are just as evil as those who steal from the public purse.”
Speeches of Adlai Ewing Stevenson (1952), p. 99

“But beware of retorting. It is not your part to return evil for evil.”
Sermon 38 "A Caution against Bigotry http://www.ccel.org/ccel/wesley/sermons.v.xxxviii.html
Sermons on Several Occasions (1771)
Context: In order to examine ourselves thoroughly, let the case be proposed in the strongest manner. What, if I were to see a Papist, an Arian, a Socinian casting out devils? If I did, I could not forbid even him, without convicting myself of bigotry. Yea, if it could be supposed that I should see a Jew, a Deist, or a Turk, doing the same, were I to forbid him either directly or indirectly, I should be no better than a bigot still.
O stand clear of this! But be not content with not forbidding any that casts out devils. It is well to go thus far; but do not stop here. If you will avoid all bigotry, go on. In every instance of this kind, whatever the instrument be, acknowledge the finger of God. And not only acknowledge, but rejoice in his work, and praise his name with thanksgiving. Encourage whomsoever God is pleased to employ, to give himself wholly up thereto. Speak well of him wheresoever you are; defend his character and his mission. Enlarge, as far as you can, his sphere of action; show him all kindness in word and deed; and cease not to cry to God in his behalf, that he may save both himself and them that hear him.
I need add but one caution: Think not the bigotry of another is any excuse for your own. It is not impossible, that one who casts out devils himself, may yet forbid you so to do. You may observe, this is the very case mentioned in the text. The Apostles forbade another to do what they did themselves. But beware of retorting. It is not your part to return evil for evil. Another’s not observing the direction of our Lord, is no reason why you should neglect it. Nay, but let him have all the bigotry to himself. If he forbid you, do not you forbid him. Rather labour, and watch, and pray the more, to confirm your love toward him. If he speak all manner of evil of you, speak all manner of good (that is true) of him.

And further, one should think: "This leads to happiness in this world and the next."
Edicts of Ashoka (c. 257 BC)

Source: Earthsea Books, The Farthest Shore (1972), Chapter 3, "Hort Town" (Ged)

1990s, The Party of Lincoln vs. The Party of Bureaucrats (1996)
Context: Suddenly, however, remedies for something called 'racism' became the order of the day. The word itself, like 'sexism', is of recent coinage and will not be found in any older dictionaries. The civil rights movement, premised upon individual rights, suddenly became the black power movement, premised upon group rights. 'Affirmative action' became a euphemism for the baldest kind of racial discrimination. That whites had long enjoyed preference over blacks was now taken to be a justification for blacks having preference over whites. What was lost sight of was that the evil of the past, whether of slavery or of Jim Crow, was evil not because it was done by whites to blacks, but because it was done by some human beings to other human beings. The purpose of the law was to end evil acts, not continue them in the guise of 'affirmative action'.