De Stoicorum repugnantiis

In one place he says, that the vice called Ἐπιχαιρεκακία, or the rejoicing at other men’s harms, has no being; since no good man ever rejoiced at another’s evils. But in his Second Book of Good, having declared envy to be a sorrow at other men’s good,—to wit, in such as desire the depression of their neighbors that themselves may excel,— he joins to it this rejoicing at other men’s harms, saying thus: To this is contiguous the rejoicing at other men’s harms, in such as for like causes desire to have their neighbors low; but in those that are turned according to other natural motions, is engendered mercy. For he manifestly admits the joy at other men’s harms to be subsistent, as well as envy and mercy; though in other places he affirms it to have no subsistence; as he does also the hatred of wickedness, and the desire of dishonest gain.