In taking revenge, a man is but even with his enemy; but in passing it over, he is superior.
~ Sir Francis Bacon
This makes me think of Proverbs 17:9,"Whoever covers an offense seeks love, but he who repeats a matter separates close friends." and Proverbs 19:11, "Good sense makes one slow to anger, and it is his glory to overlook an offense."
And if that doesn't sound like Proverbs 17:1, I don't know what does..."Better is a dry morsel with quiet than a house full of feasting with strife."