Aristotle, Nicomachean Ethics
H. Rackham, Ed.

Of these two inferior kinds of friendship, the one that more closely resembles true friendship is that based on pleasure, in which the same benefit is conferred by both parties, and they enjoy each other's company, or have common tastes; as is the case with the friendships of young people. For in these there is more generosity of feeling, whereas the friendship of utility is a thing for sordid souls. Also those blessed with great prosperity have no need of useful friends, but do need pleasant ones, since they desire some society; and though they may put up with what is unpleasant for a short time, no one would stand it continually: you could not endure even the Absolute Good itself for ever, if it bored you; and therefore the rich seek for friends who will be pleasant. No doubt they ought to require them to be good as well as pleasant, and also good for them, since then they would possess all the proper qualifications for friendship.