Aristotle, probably responding to Plato’s discussion of friendship in the Lysis, distinguishes three kinds of friendship: that which derives from mutual utility, that which derives from mutual pleasure and that which derives from a shared concern for goods which are the goods of both and therefore exclusively of neither. It is, as I have already had occasion to emphasize, the third which is genuine friendship and which provides the paradigm for the relationship between husband and wife in the household as well as for that between citizen and citizen in the polis. Thus the good man’s final
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