In a similar manner also of that part which is auxiliary, powerful, and efficacious, one part is of a governing nature; another part is defensive; and the remaining, which is the greater part, is gregal and military. It is the governing part, therefore, from which the leaders of armies, the præfects of cohorts, the bands of soldiers, and the vanguards are derived, and universally all those who rank as leaders. But the whole genus of the vanguards consists of those that are most brave, most impetuous, and most daring. And the remaining multitude is gregarious and military. Of the third part, however, which is engaged in sordid occupations, and in labouring to procure the necessaries of life, one part consists of husbandmen, and those who are employed in the elaboration of the land; but another part consists of artificers, who procure such instruments and machines as the occasions of life require; and another part is engaged in peregrinations and merchandise, and in exporting to foreign regions such things as are superabundant in the city, and importing into it other things from foreign countries. The systems of political society, therefore, are coarranged through so many and such like parts. In the next place, it is requisite to speak of their adaptation and union. Since, however, the whole of political society may be perfectly assimilated to a lyre, in consequence of requiring apparatus and coaptation, and also because it is necessary that it should be touched and used musically;—this being the case, I have sufficiently spoken above about the apparatus of a polity, and shown from what and from how many particulars it is constituted. I shall now, therefore, endeavour to speak of the coaptation and union of these. I say then, that political society is coadapted from the following three particulars, from disciplines, the study of manners [or customs], and from the laws; and that through these three, man is instructed, and becomes more worthy. For disciplines are the sources of erudition, and cause the desires to be impelled to virtue. But the laws, partly detaining by fear, repell men [from the commission of crimes,] and partly alluring by honours and gifts, excite them [to virtue]. And manners and studies fashion the soul like wax, and through their continued energy impress in it propensities that become, as it were, natural. It is necessary, however, that these three should have an arrangement in conjunction with the beautiful, the useful, and the just; and that each of these three should, if possible, have all these for its final intention; but if not all of them, it should at least have two or one of them as the mark at which it aims, in order that disciplines, manners, and laws may be beautiful, just, and advantageous. In the first place, however, the beautiful in conduct should be preferred; in the second place the just; and in the third place, the useful. And universally the endeavour should be, that through these the city may