At another time, they define the good in a peculiar manner, as being what is perfect according to the nature of a rational being as rational being. And, secondly, they say that it is conformity to virtue, so that all actions which partake of virtue, and all good men, are themselves in some sense the good. And in the third place, they speak of its accessories, joy, and mirth, and things of that kind. In the same manner they speak of vices, which they divide into folly, cowardice, injustice, and things of that kind. And they consider that those things which partake of vices, and actions done according to vice, and bad men, are themselves in some sense the evil; and its accessories are despondency, and melancholy, and other things of that kind. LVI. Again, of goods, some have reference to the mind, and some are external; and some neither have reference to the mind, nor are external. The goods having reference to the mind are virtues, and actions according to the virtues. The external goods are the having a virtuous country, a virtuous friend, and the happiness of one’s country and friend. And those which are not external, and which have no reference to the mind, are such as a man’s being virtuous and happy to himself. And reciprocally, of evils, some have reference to the mind, such as the vices and actions according to them; some are external, such as having a foolish country, or a foolish friend, or one’s country or one’s friend being unhappy. And those evils which are not external, and which have no reference to the mind, are such as a man’s being worthless and unhappy to himself. LVII. Again, of goods, some are final, some are efficient, and some are both final and efficient. For instance, a friend, and the services done by him to one, are efficient goods; but courage, and prudence, and liberty, and delight, and mirth, and freedom from pain, and all kinds of actions done according to virtue, are final goods. There are too, as I said before, some goods which are both efficient and final; for inasmuch as they produce perfect happiness they are efficient, and inasmuch as they complete it by being themselves parts of it, they are final. And in the same way, of evils, some are final, and some efficient, and some partake of both natures. For instance, an enemy and the injuries done to one by him, are efficient evils; fear, meanness of condition, slavery, want of delight, depression of spirits, excessive grief, and all actions done according to vice, are final evils; and some partake of both characters, since, inasmuch as they produce perfect unhappiness, they are efficient; and inasmuch as they complete it in such a way as to become parts of it, they are final.