[1334b] imagining this good was to be procured by a particular virtue; but since there are greater goods than those of war, it is evident that the enjoyment of those which are valuable in themselves should be desired, rather than those virtues which are useful in war; but how and by what means this is to be acquired is now to be considered. We have already assigned three causes on which it will depend; nature, custom, and reason, arid shown what sort of men nature must produce for this purpose; it remains then that we determine which we shall first begin by in education, reason or custom, for these ought always to preserve the most entire harmony with each other; for it may happen that reason may err from the end proposed, and be corrected by custom. In the first place, it is evident that in this as in other things, its beginning or production arises from some principle, and its end also arises from another principle, which is itself an end. Now, with us, reason and intelligence are the end of nature; our production, therefore, and our manners ought to be accommodated to both these. In the next place, as the soul and the body are two distinct things, so also we see that the soul is divided into two parts, the reasoning and not-reasoning, with their habits which are two in number, one belonging to each, namely appetite and intelligence; and as the body is in production before the soul, so is the not-reasoning part of the soul before the reasoning; and this is evident; for anger, will and desire are to be seen in children nearly as soon as they are born; but reason and intelligence spring up as they grow to maturity. The body, therefore, necessarily demands our care before the soul; next the appetites for the sake of the mind; the body for the sake of the soul. CHAPTER XVI