that what is honourable is the only good. Again, they affirm that it is of itself sufficient for happiness, as Zeno says, and he is followed in this assertion by Chrysippus in the first book of his treatise on Virtues, and by Hecaton in the second book of his treatise on Goods.
“For if,” says he, “magnanimity be sufficient of itself to enable us to act in a manner superior to all other men; and if that is a part of virtue, then virtue is of itself sufficient for happiness, despising all things which seem troublesome to it.” However, Panætius and Posidonius do not admit that virtue has this sufficiency of itself, but say that there is also need of good health, and competency, and strength. And their opinion is that a man exercises virtue in everything, as Cleanthes asserts, for it cannot be lost; and the virtuous man on every occasion exercises his soul, which is in a state of perfection.
LXVI. Again, they