BOOK IX
I
Well, in all the Friendships the parties to which are dissimilar it is the proportionate which equalises and preserves the Friendship, as has been already stated: I mean, in the Social Friendship the cobbler, for instance, gets an equivalent for his shoes after a certain rate; and the weaver, and all others in like manner. 1164a Now in this case a common measure has been provided in money, and to this accordingly all things are referred and by this are measured: but in the Friendship of Love the complaint is sometimes from the lover that, though he loves exceedingly, his love is not requited; he having perhaps all the time nothing that can be the object of Friendship: again, oftentimes from the object of love that he who as a suitor promised any and every thing now performs nothing. These cases occur because the Friendship of the lover for the beloved object is based upon pleasure, that of the other for him upon utility, and in one of the parties the requisite quality is not found: for, as these are respectively the grounds of the Friendship, the Friendship comes to be broken up because the motives to it cease to exist: the parties loved not one another but qualities in one another which are not permanent, and so neither are the Friendships: whereas the Friendship based upon the moral character of the parties, being independent and disinterested, is permanent, as we have already stated.
Quarrels arise also when the parties realise different results and not those which they desire; for the not attaining one's special object is all one, in this case, with getting nothing at all: as in the well-known case where a man made promises to a musician, rising in proportion to the excellence of his
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