In the gymnastic exercises suppose that a man has torn thee with his nails, and by dashing against thy head has inflicted a wound. Well, we neither show any signs of vexation, nor are we offended, nor do we suspect him afterwards as a treacherous fellow; and yet we are on our guard against him, not however as an enemy, nor yet with suspicion, but we quietly get out of his way. Something like this let thy behaviour be in all the other parts of life; let us overlook many things in those who are like antagonists in the gymnasium. For it is in our power, as I said, to get out of the way, and to have no suspicion nor hatred.
If any man is able to convince me and show me that I do not think or act right, I will gladly change; for I seek the truth by which no man was ever injured. But he is injured who abides in his error and ignorance.
Let there fall externally what will on the parts which can feel the effects of this fall. For those parts which have felt will complain, if they choose. But I, unless I think that what has happened is an evil, am not injured. And it is in my power not to think so.
Say nothing more to thyself than what the first appearances report. Suppose that it has been reported to thee that a certain person speaks ill of thee. This has been reported; but that thou hast been injured, that has not been reported. I see that my child is sick. I do see; but that he is in danger, I do not see. Thus then always abide by the first appearances, and add nothing thyself from within, and then nothing happens to thee. Or rather add something, like a man who knows everything that happens in the world.
When thou art offended with any man's shameless conduct, immediately ask thyself, Is it possible, then, that shameless men should not be in the world? It is not possible. Do not, then, require what is impossible. For this man also is one of those shameless men who must of necessity be in the world. Let the same considerations be present to thy mind in the case of the knave, and the faithless man, and of every man who does wrong in any way. For at the same time that thou dost remind thyself that it is impossible that such kind of men should not exist, thou wilt become more kindly disposed towards every one individually. It is useful to perceive this, too, immediately when the occasion arises, what virtue nature has given to man to oppose to every wrongful act. For she has given to man, as an antidote against the stupid man, mildness, and against another kind of man some other power. And in all cases it is possible for thee to correct by teaching the man who is gone astray; for every man who errs misses his object and is gone astray. Besides wherein hast thou been injured? For thou wilt find that no one among those against whom thou art irritated has done anything by which thy mind could be made worse; but that which is evil to thee and harmful has its foundation only in the mind. And what harm is done or what is there strange, if the man who has not been instructed does the acts of an uninstructed man? Consider whether thou shouldst not rather blame thyself, because thou didst not expect such a man to err in such a way. For thou hadst means given thee by thy reason to suppose that it was likely that he would commit this error, and yet thou hast forgotten and art amazed that he has erred. But most of all when thou blamest a man as faithless or ungrateful, turn to thyself. For the fault is manifestly thy own, whether thou didst trust that a man who had such a disposition would keep his promise, or when conferring thy kindness thou didst not confer it absolutely, nor yet in such way as to have received from thy very act all the profit. For what more dost thou want when thou hast done a man a service? Art thou not content that thou hast done something conformable to thy nature, and dost thou seek to be paid for it? Just as if the eye demanded a recompense for seeing, or the feet for walking. For as these members are formed for a particular purpose, and by working according to their several constitutions obtain what is their own; so also as man is formed by nature to acts of benevolence, when he has done anything benevolent or in any other way conducive to the common interest, he has acted conformably to his constitution, and he gets what is his own.