would be a tariff for trade, or an alliance for mutual defence, but not the same city. And why? not because their mutual intercourse is not near enough, for even if persons so situated should come to one place, and every one should live in his own house as in his native city, and there should be alliances subsisting between each party to mutually assist and prevent any injury being done to the other, still they would not be admitted to be a city by those who think correctly, if they preserved the same customs when they were together as when they were separate.
It is evident, then, that a city is not a community of place; nor established for the sake of mutual safety or traffic with each other; but that these things are the necessary consequences of a city, although they may all exist where there is no city: but a city is a society of people joining together with their families and their children to live agreeably for the sake of having their lives as happy and as independent as possible: and for this purpose it is necessary that they should live in one place and intermarry with each other: hence in all cities there are family-meetings, clubs, sacrifices, and public entertainments to promote friendship; for a love of sociability is friendship itself; so that the end then for which a city is established is, that the inhabitants of it may live happy, and these things are conducive to that end: for it is a community of families and villages for the sake of a perfect independent life; that is, as we have already said, for the sake of living well and happily. It is not therefore founded for the purpose of men's merely [1281a] living together, but for their living as men ought; for which reason those who contribute most to this end deserve to have greater power in the city than those who are their equals in family and freedom, but their inferiors in civil virtue, or those who excel them in wealth but are below them in worth. It is evident from what has been said, that in all disputes upon government each party says something that is just.
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