of ensuring to themselves sufficient independency and self-protection; and if anything necessary for these purposes is wanting, it is impossible that in such a situation these ends can be obtained. It is necessary therefore that a city should be capable of acquiring all these things: for this purpose a proper number of husbandmen are necessary to procure food, also artificers and soldiers, and rich men, and priests and judges, to determine what is right and proper. CHAPTER IX Having determined thus far, it remains that we consider whether all these different employments shall be open to all; for it is possible to continue the same persons always husbandmen, artificers, judges, or counsellors; or shall we appoint different persons to each of those employments which we have already mentioned; or shall some of them be appropriated to particulars, and others of course common to all? but this does not take place in every state, for, as we have already said, it is possible that all may be common to all, or not, but only common to some; and this is the difference between one government and another: for in democracies the whole community partakes of everything, but in oligarchies it is different. Since we are inquiring what is the best government possible, and it is admitted to be that in which the citizens are happy; and that, as we have already said, it is impossible to obtain happiness without virtue; it follows, that in the best-governed states, where the citizens are really men of intrinsic and not relative goodness, none of them should be permitted to exercise any mechanic employment or follow merchandise, as being ignoble and destructive to virtue; neither should they be husband-[1329a] men, that they may be at leisure to improve in virtue and perform the duty they owe to the state. With respect to the employments of a soldier, a senator, and a judge, which are evidently necessary to the community, shall they be allotted to different persons, or shall the same person execute both? This question, too, is easily answered: for in some cases the same persons may execute them, in others they should be different, where the different employments require different abilities, as when courage is wanting for one, judgment for the other, there they should be allotted to different persons; but when it is evident, that it is impossible to oblige those who have arms in their hands, and can insist on their own terms, to be always under command; there these different employments should be trusted to one person; for those who have arms in their hands have it in their option whether they will or will not assume the supreme power: to these two (namely, those who have courage and judgment) the government must be entrusted; but not in the same manner, but as nature directs; what requires courage to the young, what requires judgment to the old; for with the young is courage, with the old is wisdom: thus each will be