Since then we propose to inquire what civil society is of all others best for those who have it in their power to live entirely as they wish, it is necessary to examine into the polity of those states which are allowed to be well governed; and if there should be any others which some persons have described, and which appear properly regulated, to note what is right and useful in them; and when we point out wherein they have failed, let not this be imputed to an affectation of wisdom, for it is because there are great defects in all those which are already established, that I have been induced to undertake this work. We will begin with that part of the subject which naturally presents itself first to our consideration. The members of every state must of necessity have all things in common, or some things common, and not others, or nothing at all common. To have nothing in common is evidently impossible, for society itself is one species of [1261a] community; and the first thing necessary thereunto is a common place of habitation, namely the city, which must be one, and this every citizen must have a share in. But in a government which is to be well founded, will it be best to admit of a community in everything which is capable thereof, or only in some particulars, but in others not? for it is possible that the citizens may have their wives, and children, and goods in common, as in Plato's Commonwealth; for in that Socrates affirms that all these particulars ought to be so. Which then shall we prefer? the custom which is already established, or the laws which are proposed in that treatise?