are to be desired for their own sake. But if, in enumerating the advantages of the body, any one should think that we have passed over pleasure, that question may be postponed till another opportunity; for it makes no difference with regard to the present subject of our discussion, whether pleasure consists in those things which we have called the chief things in accordance with nature, or whether it does not. For if, as I indeed think, pleasure is not the crowning good of nature, it has been properly passed over: but if that crowning good does exist in pleasure, as some assert, then the fact does not at all hinder this idea of ours of the chief good from being the right one. For, if to those things which are the principal goods of nature, pleasure is added, then there will have been added just one advantage of the body; but no change will have been made in the original definition of the chief good which was laid down at first.
XVII. And hitherto, indeed, reason has advanced with us in such a way as to be wholly derived from the original recommendation of nature. But now we must pursue another kind of argument, namely, that we are moved in these matters of our own exceeding goodwill, not only because we love ourselves, but because there is both in the body and in the mind a peculiar power belonging to each part of nature. And, (to begin with the body,) do you not see that if there is anything in their limbs deformed, or weak, or deficient, men conceal it? and take pains, and labour earnestly, if they can possibly contrive it, to prevent that defect of the body from being visible, or else to render it as little visible as possible? and that they submit to great pain for the sake of curing any such defect? in order that, even though the actual use of the limb, after the application of the remedy, be likely to be not greater, but even less, still the appearance of the limb may be restored to the ordinary course of nature. In truth, as all men fancy that they are altogether desirable by nature, and that too, not on any other account, but for their own sakes, it follows inevitably that each part of them should be desired for its own sake, because the whole body is sought for its own sake. What more need I say? Is there nothing in the motion and condition of the body which nature herself decides ought to be noticed? for instance, how a person walks or sits, what the expression of his countenance is, what