When any person treats you ill or speaks ill of you, remember that he does this or says this because he thinks that it is his duty. It is not possible, then, for him to follow that which seems right to you, but that which seems right to himself. Accordingly, if he is wrong in his opinion, he is the person who is hurt, for he is the person who has been deceived; for if a man shall suppose the true conjunction to be false, it is not the conjunction which is hindered, but the man who has been deceived about it. If you proceed, then, from these opinions, you will be mild in temper to him who reviles you: for say on each occasion, It seemed so to him.