“When any person treats you badly, or speaks ill of you, remember that he acts or speaks from an impression that it is right for him to do so. Now, it is not possible that he should follow what appears right to you, but only what appears so to himself. Therefore, if he judges from false appearances, he is the person hurt; since he too is the person deceived. For if anyone takes a true proposition to be false, the proposition is not hurt, but only the man is deceived. Setting out, then, from these principles, you will be gentle with a person who reviles you; for you will say upon every occasion, ‘It seemed so to him.’”

Enchiridion 42 [Higginson Trans.]