orderly and temperate, and should abstain from every thing which appears to be troublesome and indecorous; but that when they have arrived at adolescency, they may for the most part do whatever they please. Hence there is nearly a conflux of both kinds of errors into this age. For lads commit many faults which are both puerile and virile. For, in short, to avoid every kind of sedulity and order, and to pursue every species of sport, and puerile intemperance and insolence, are most adapted to the age of a boy. Such a disposition therefore as this, is derived from the puerile into the following age. But the genus of strong desires, and of different species of ambition, and in a similar manner the remaining impulses and dispositions, when they are of a severe and turbulent nature, are derived from the virile age into that of adolescency. Hence this of all the ages demands the greatest attention. And universally, no man ought to be suffered to do whatever he pleases, but it is always necessary that there should be a certain inspection, and a legal and elegantly-formed government, to which each of the citizens is obedient. For the animal, when left to itself and neglected, rapidly degenerates into vice and depravity. It is likewise said, that the Pythagoreans frequently inquired and doubted why we accustom boys to take their food in an orderly and commensurate manner, and show them that order and symmetry are beautiful; but that the contraries to these, disorder and incommensuration, are base; and that he who is given to wine and is insatiable, is held in great disgrace. For if no one of these is useful to us when we have arrived at the age of virility, it was in vain that we were accustomed, when boys, to an order of this kind. And there is also the same reason concerning the other manners [to which we are accustomed when boys]. This, therefore, is not seen to happen in other animals which are disciplined by men; but immediately from the first, a whelp and a colt are accustomed to, and learn those things which it is requisite for them to do when they have arrived at the perfection of their nature. And universally, it is said that the Pythagoreans exhorted both those they happened to meet, and their familiars, to avoid pleasure as a thing that required the greatest caution. For nothing so much deceives us, or precipitates us into error, as this passion. In short, as it seems, they contended that we should never do any thing with a view to pleasure as the end. For this scope is, for the most part, indecorous and noxious. _But they asserted, that especially looking to the beautiful and decorous, we should do whatever is to be done._[43] And that in the second place we should look to the advantageous and the useful. These things, however, require no casual judgment.