When you are offended by the shamelessness of any man, straightway ask yourself: Can the world exist without shameless men? It cannot. Therefore do not demand what is impossible. Your enemy also is one of these shameless people who must needs be in the universe. Have the same question also at hand when you are shocked at craft, or perfidy, or any other sin. For while you remember that it is impossible that the class should not exist, you will be more charitable to each particular individual. It is useful also to have this reflection ready: What virtue has nature given to man wherewith to combat this fault? Against unreason she has given meekness as an antidote; against another weakness another power. You are also at full liberty to set right one who has wandered; now every wrong-doer is missing his proper aim and has gone astray. And then, in what are you injured? You will find that none of those at whom you are exasperated have done anything whereby your intellectual part was like to be the worse. Now anything which can really harm or hurt you has its subsistence there, and there alone. And wherein is it strange or evil that the man untaught acts after his kind? Look if you ought not rather to blame yourself for not having laid your account with his being guilty of such faults. Your reason gave you the means to conclude that it was probable that he would do this wrong; you forgot, and yet wonder that he has done it. But above all, when you are blaming any one for faithlessness or ingratitude, turn to yourself. The fault lies manifestly with you, if you trusted that a man of such a disposition could keep faith; or if, when you granted the favour, you did not grant it without ulterior views, and on the principle that the complete and immediate reward of your action lay in the doing of it. What would you more, when you have done a man a kindness? Is it not enough for you that you have acted in this according to your nature? Do you ask a reward for it? It is as if the eye were to ask a reward for seeing, or the feet for walking. For just as these parts are formed for a certain purpose, which when they fulfil according to their proper structure, they attain their proper end; so man, formed by nature to do kindness to his fellows, whenever he acts kindly, or in any other way works for the common good, has fulfilled the purpose of his creation, and has possession of what is his own.