Friendship then under these circumstances is permanent, as we should reasonably expect, since it combines in itself all the requisite qualifications of friends. I mean, that Friendship of whatever kind is based upon good or pleasure (either abstractedly or relatively to the person entertaining the sentiment of Friendship), and results from a similarity of some sort; and to this kind belong all the aforementioned requisites in the parties themselves, because in this the parties are similar, and so on:[4] moreover, in it there is the abstractedly good and the abstractedly pleasant, and as these are specially the object-matter of Friendship so the feeling and the state of Friendship is found most intense and most excellent in men thus qualified. Rare it is probable Friendships of this kind will be, because men of this kind are rare. Besides, all requisite qualifications being presupposed, there is further required time and intimacy: for, as the proverb says, men cannot know one another “till they have eaten the requisite quantity of salt together;” nor can they in fact admit one another to intimacy, much less be friends, till each has appeared to the other and been proved to be a fit object of Friendship. They who speedily commence an interchange of friendly actions may be said to wish to be friends, but they are not so unless they are also proper objects of Friendship and mutually known to be such: that is to say, a desire for Friendship may arise quickly but not Friendship itself. Well, this Friendship is perfect both in respect of the time and in all other points; and exactly the same and similar results accrue to each party from the other; which ought to be the case between friends. The friendship based upon the pleasurable is, so to say, a copy of this, since the good are sources of pleasure to one another: and that based on utility likewise, the good being also useful to one another. Between men thus connected Friendships are most permanent when the same result accrues to both from one another, pleasure, for instance; and not merely so but from the same source, as in the case of two men of easy pleasantry; and not as it is in that of a lover and the object of his affection, these not deriving their pleasure from the same causes, but the former from seeing the latter and the latter from receiving the attentions of the former: and when the bloom of youth fades the Friendship sometimes ceases also, because then the lover derives no pleasure from seeing and the object of his affection ceases to receive the attentions which were paid before: in many cases, however, people so connected continue friends, if being of similar tempers they have come from custom to like one another’s disposition.