De Stoicorum repugnantiis
Plutarch
Plutarch. Plutarch's Morals, Vol. IV. Goodwin, William W., translator. Boston: Little, Brown, and Company; Cambridge, MA: Press of John Wilson and Son, 1874.
Moreover, Plato having said, that injustice, as being the corruption and sedition of the soul, loses not its power even in those who have it within them, but sets the wicked man against himself, and molests and disturbs him; Chrysippus, blaming this, affirms that it is absurdly said, A man injures himself; for that injustice is to another, and not to one’s self. But forgetting this, he again says, in his demonstrations concerning justice, that the unjust man is injured by himself and injures himself when he injures another, becoming to himself the cause of transgressing, and undeservedly hurting himself. In his books indeed against Plato, contending that we cannot speak of injustice against one’s self, but against another, he has these words: For men cannot be unjust by themselves; injustice requires several on opposite sides, speaking contrary one unto another. But no such thing extends to one alone, except inasmuch as he is affected towards his neighbor. But in his demonstrations he has such discourses as these, concerning the unjust man’s being injurious also to
himself: The law forbids the being any way the author of transgression, and to act unjustly will be transgression. He therefore who is to himself the author of acting unjustly transgresses against himself. Now he that transgresses against any one also injures him; therefore he who is injurious to any one whomsoever is injurious also to himself. Again: Sin is a hurt, and every one who sins sins against himself; every one therefore who sins hurts himself undeservedly, and if so, is also unjust to himself. And farther thus: He who is hurt by another hurts himself, and that undeservedly. Now that is to be unjust. Every one therefore that is injured, by whomsoever it is, is unjust also to himself.He says, that the doctrine concerning good and evil which himself introduces and approves is most agreeable to life, and does most of all reach the inbred prenotions; for this he has affirmed in his Third Book of Exhortations. But in his First Book he says, that this doctrine takes a man off from all other things, as being nothing to us, nor co-operating any thing towards felicity. See now, how consonant he is to himself, when he asserts a doctrine which takes us off from life, health, indolence, and integrity of the senses, and says that those things we beg of the Gods are nothing to us, though most agreeable to life and to the common presumptions. But that there may be no denial of his speaking contradictions, in his Third Book of Justice he has said thus: Wherefore also, from the excellence of their greatness and beauty, we seem to speak things like to fictions, and not according to man or human nature. Is it then possible that any one can more plainly confess his speaking things contrary to himself than this man does, who affirms those things which (he says) for their excellency seem to be fictions and to be spoken above man and human nature, to be agreeable to life, and most of all to reach the inbred prenotions?