Book 7
33
Nevertheless here too it is clear how we must decide: here too we must measure by one standard, but by a ratio, not a number. For we must measure by proportion, as also the civic partnership is measured. For how is a shoemaker to be partner with a farmer unless their products are equalized by proportion?
34
Therefore the measure for partnerships not directly reciprocal is proportion—for example if one party complains that he has given wisdom and the other says he has given the former money, what is the ratio of wisdom to being rich? and then, what is the amount given for each? for if one party has given half of the smaller amount but the other not even a small fraction of the larger, it is clear that the latter is cheating.
35
But here too there is a dispute at the outset, if one says that they came together on grounds of utility and the other denies it and says it was on the basis of some other kind of friendship.
1
About the good friend and the friend on the basis of goodness, we must consider whether one ought to render useful services and assistance to him or to the friend who is able to make an equal return. This is the same problem as whether it is more one’s duty to benefit a friend or a virtuous man.
