text: No man ought to glory except in that which is his own. We praise a vine if it makes the shoots teem with increase, if by its weight it bends to the ground the very poles which hold its fruit; would any man prefer to this vine one from which golden grapes and golden leaves hang down? In a vine the virtue peculiarly its own is fertility; in man also we should praise that which is his own. Suppose that he has a retinue of comely slaves and a beautiful house, that his farm is large and large his income; none of these things is in the man himself; they are all on the outside. Praise the quality in him which cannot be given or snatched away, that which is the peculiar property of the man. Do you ask what this is? It is soul, and reason brought to perfection in the soul. For man is a reasoning animal. Therefore, man's highest good is attained, if he has fulfilled the good for which nature designed him at birth. And what is it which this reason demands of him? The easiest thing in the world, – to live in accordance with his own nature. But this is turned into a hard task by the general madness of mankind; we push one another into vice. And how can a man be recalled to salvation, when he has none to restrain him, and all mankind to urge him on? Farewell.