XV. (49) The wise man, therefore, who appears to have departed from this mortal life, lives according to the immortal life; but the wicked man who lives in wickedness has died according to the happy life. For in the various animals of different kinds, and in general in all bodies, it is both possible and easy to conceive, that the agents are of one kind, and the patients of another. For when a father beats his son, correcting him, or when a teacher beats his pupil, he who beats is one, and he who is beaten is another. But in the case of these beings, which are united and made one, only in the part as to which both acting and suffering are found to exist; these two things are there, neither at different times, nor do they affect different people, but they affect the same person in the same manner at the same time. At all events, when an athlete rubs himself for the sake of taking exercise, he is by all means rubbed also; and, if any one strikes himself, he himself is struck and wounded; and so also he who mutilates or kills himself as the agent, is mutilated or killed as the patient. (50) Why, then, do I say this? Because it appears inevitable that the soul, inasmuch as it consists not of particles which are separated but of those which are united, should suffer what it appears to do, as in real truth it did in this instance; for, when it appeared to be destroying the God-loving doctrine, it destroyed itself. And Lamech is a witness to this, the descendant of the impiety of Cain, who says to his wives, who are the representatives of two inconsiderate opinions, "I have slain a man to my hurt, and a young man to be a scar to Me."[Ge 4:23.] (51) For it is evident that if any one slays the principle of courage, he wounds himself with the opposite disease of cowardice; and if any one in the practice of honourable studies slays his vigorous strength, he is inflicting on himself wounds and great injuries with no moderate degree of disgrace. Therefore, indeed, perseverance says that if practice and improvement be destroyed she will lose not only one child but also her others also, and be an instance of complete childlessness.