
“One should forgive one's enemies, but not before they are hanged.”
Statement of 1848, as quoted in The Cynic's Lexicon : A Dictionary of Amoral Advice (1984) by Jonathon Green, p. 91
One must forgive one's enemies, but not before they are hanged.
As quoted in A Mania for Sentences (1985) by Dennis Joseph Enright, p. 10
Variant: We should forgive our enemies, but not before they are hanged