Book 7
17
When, therefore, it is based on a definite agreement, this is civic and legal friendship; but when they trust each other for repayment, it tends to be moral friendship, that of comrades. Hence this is the kind of friendship in which recriminations most occur, the reason being that it is contrary to nature; for friendship based on utility and friendship based on goodness are different, but these people wish to have it both ways at once—they associate together for the sake of utility but make it out to be a moral friendship as between good men, and so represent it as not merely legal, pretending that it is a matter of trust.
18
For in general, of the three kinds of friendship, it is in useful friendship that most recriminations occur (for goodness is not given to recrimination, and pleasant friends having got and given their share break it off, but useful friends do not dissolve the association at once, if their intercourse is on comradely and not merely legal lines);
