Chrysippus and Diogenes denied its whole utility, and used to say that one ought not even to put forth a finger for the sake of it, with whom I entirely and heartily agree. But those who came after them, being unable to withstand the arguments of Carneades, said that this good reputation, as I call it, was preferred for its own sake, and ought to be chosen for its own sake, and that it was natural for a man of good family, who had been properly brought up, to wish to be praised by his parents, his relations, and by good men in general, and that too for the sake of the praise itself, and not of any advantage which might ensue from it. And they say, too, that as we wish to provide for our children, even for such as may be posthumous children, for their own sake, so we ought also to show a regard for posthumous fame after our death, for its own sake, without any thought of gain or advantage.
But as we assert that what is honourable is the only good, still it is consistent with this assertion to discharge one's duty, though we do not class duty among either the goods or the evils. For there is in these things some likelihood, and that of such a nature that reasons can be alleged for there being such; and therefore of such a nature, that probable reasons may be adduced for adopting such a line of conduct. From which it follows that duty is a sort of neutral thing, which is not to be classed either among the goods or among the opposites of goods. And since, in those things which are neither ranked among the virtues nor among the vices, there is still something which may be of use; that is not to be destroyed. For there is a certain action of that sort, and that too of such a character that reason requires one to do and perform it. But that which is done in obedience to reason we call duty; duty, then, is a thing of that sort, that it must not be ranked either among the goods or among the opposites of goods.
XVIII. And this also is evident, that in these natural things the wise man is not altogether inactive. He therefore, when he acts, judges that that is his duty; and because he is never deceived in forming his judgment, duty must be classed among neutral things; and this is proved also by this conclusion of reason. For since we see that there is something which we pronounce to have been rightly done (for that is duty when accomplished), there must also be something which is rightly begun: as, if to restore what has been justly
