What Is Aristotelian Friendship?

Quick Answer

Aristotle's treatment of friendship (philia) in Books VIII and IX of the Nicomachean Ethics is the most sustained philosophical analysis of the subject in the Western tradition. He argued that friendship is not an optional addition to a good life but a necessary condition of it — no one would choose to live without friends, even if they possessed every other good. His central contribution is a tripartite classification: friendships of utility, friendships of pleasure, and friendships of virtue. The first two are common, fragile, and easily dissolved when their ground changes. Only the third — the friendship grounded in mutual recognition of good character, in which each person wishes the other's good for the other's own sake — is friendship in the complete and fullest sense.

The Aristotelian framework matters because it refuses to treat friendship as a single, undifferentiated feeling. What we call friendship in ordinary speech covers relationships of strikingly different depths and durabilities. The colleague who is friendly because the work requires it, the companion whose company brightens an evening, and the friend whose loss would leave a permanent hole in one's life are not three instances of the same thing. Aristotle gives us the vocabulary to distinguish them, and to ask which kind we are actually cultivating.

The Three Types of Friendship

Aristotle's classification rests on a simple but penetrating observation: friendships differ according to what they are based on, and what they are based on determines how stable they are. People become friends, he says, insofar as they are lovable, and they are lovable in three ways — as useful, as pleasant, or as good.

Friendship of utility describes relationships in which each party values the other for what they can provide. The business partner, the political ally, the neighbor with whom one exchanges favors — these are friendships in a sense, because they involve mutual goodwill and some degree of shared activity. But the goodwill is conditional on the utility. When the business dissolves, the alliance shifts, or the favors become inconvenient, the friendship dissolves with it. Aristotle is not condemning these relationships. They are legitimate, and they serve real human needs. But he insists that we should not mistake them for the deeper thing. The person who grieves the loss of a utility friendship as though it were the loss of a virtue friendship has confused two different goods.

Friendship of pleasure is closer to what many people mean when they speak of friendship in casual conversation. The companions one drinks with, the friends whose company one seeks because they are witty or charming or share one's taste in music — these relationships involve genuine affection, and they are more personal than utility friendships. But they remain grounded in the pleasure the other provides. The friend who is delightful in youth may become tedious in middle age. The companion who shares one's enthusiasms today may move on to interests one does not share. Pleasure friendships can be warm and lasting, but their durability depends on the persistence of the pleasure, and pleasure is not the most stable foundation on which to build.

Friendship of virtue — what Aristotle calls complete or primary friendship — is the relationship in which each person wishes the good of the other for the other's own sake, not for what they can get and not for the pleasure they provide. The ground of this friendship is the recognition of good character in the other, and the mutual desire that the other flourish. Such friendship is rare, because it requires that both parties be virtuous, and virtue itself is rare. It takes time to develop, because one cannot know another's character without shared life — Aristotle says you cannot know someone until you have shared a peck of salt. And it is the most stable, because the ground on which it rests — good character — is the most stable feature a human being can possess.

The Ground of Complete Friendship

What distinguishes complete friendship from the other two is not intensity of feeling. A friendship of pleasure can involve intense feeling, and a friendship of utility can involve genuine loyalty within its sphere. What distinguishes complete friendship is the ground on which the goodwill rests. In complete friendship, the friend is loved for their own sake — not for what they provide, not for how they make one feel, but because of who they are.

This phrase — "for their own sake" — does a great deal of work in Aristotle's account, and it deserves careful attention. To love someone for their own sake is to wish them well independent of one's own benefit. It is to take an interest in their flourishing as an end in itself, not as a means to one's own flourishing. This does not mean that complete friendship brings no benefit to the one who has it. Aristotle is clear that complete friendship is the greatest of external goods, and that the person who has it is better off than the person who does not. The point is that the benefit is a consequence of the friendship, not its ground. The friend is not loved because the friendship is beneficial. The friendship is beneficial because the friend is loved.

This distinction has practical consequences. The person who treats friendship instrumentally — who calculates what they are getting and what they are giving — may have relationships that look like friendships, but they are not cultivating complete friendship. Complete friendship requires a kind of self-forgetfulness that calculation destroys. The friend who is always weighing the balance sheet is, in Aristotle's terms, a friend of utility at best, no matter how warm the feelings involved.

Friendship and the Good Life

Aristotle's claim that friendship is necessary for the good life (eudaimonia) is one of the most striking features of his ethics, and it is worth understanding why he makes it. The virtuous person, one might think, should be self-sufficient — able to flourish regardless of external circumstances. Aristotle does hold that the virtuous person is the most self-sufficient of human beings, but he denies that human self-sufficiency means independence from all relationship. Human beings are political animals by nature, and a life without friendship is not merely impoverished but inhuman.

Aristotle gives several arguments for the necessity of friendship. The virtuous person needs friends as objects of their goodwill — virtue is exercised in relation to others, and a person with no one to whom to extend generosity, share reflection, or offer help is cut off from the natural expression of virtue. The virtuous person also needs friends because shared activity is essential to the good life, and the highest shared activity — the contemplation of truth, the discussion of what matters, the cooperative pursuit of goods — is possible only with friends. And the virtuous person needs friends because friendship provides a mirror in which one can see one's own character. We come to know ourselves partly through the eyes of those who know us well, and without such friends, our self-knowledge is incomplete.

This is not a sentimental claim. Aristotle is not saying that life without friendship is lonely in the way that a rainy afternoon alone is lonely. He is saying that a life without friendship is missing one of the constitutive elements of human flourishing — that it is, in a deep sense, not fully human. The person who has every other good but no friends has not achieved the good life, because the good life is not a condition that can be achieved in isolation.

Friendship and Self-Love

One of the most discussed arguments in Books VIII and IX concerns the relationship between friendship and self-love. Aristotle addresses a puzzle: complete friendship requires wishing the friend's good for the friend's own sake, which seems to require a kind of selflessness. But self-love, on many accounts, is the opposite of selflessness. How can friendship, which involves regard for another, be connected to self-love?

Aristotle's answer depends on a distinction between two kinds of self-love. There is the self-love of the vulgar — the person who assigns to themselves the largest share of money, honors, and bodily pleasures. This is the self-love that is rightly blamed. But there is also the self-love of the virtuous person — the person who assigns to themselves the noblest and best things, who is guided by reason and who acts for the sake of what is fine. The virtuous person, Aristotle says, is in fact the truest self-lover, because they assign to themselves the things that are truly best.

The connection to friendship is this. In complete friendship, the friend is, in a sense, a second self. The virtuous person wishes for the friend's good as they wish for their own good, because the friend's flourishing is experienced as an extension of one's own. This does not mean that complete friendship is disguised selfishness. It means that the distinction between self and other, while real, does not mark the limit of what one can care about. The person who has cultivated genuine virtue has extended their concern beyond the narrow self, and the friend is the recipient of that extended concern. Far from being a form of egoism, this kind of self-love is the condition of the possibility of genuine friendship — because one cannot wish another's good for its own sake if one has no conception of what good is, and the conception of good is developed through the cultivation of one's own character.

The Question of Numbers and Equality

Aristotle's account raises practical questions that he addresses directly. How many friends can a person have? His answer is that complete friendship is necessarily limited, because it requires intimate knowledge of the other's character and substantial shared activity. One cannot know many people well, and one cannot share a life with many people. The person who has many "friends" in the complete sense is, Aristotle says, like the person who has many loves — a friend to no one. The limitation is not arbitrary; it follows from what complete friendship is.

The question of equality is more complicated. Aristotle argues that friendships between equals are the most natural and the most stable, but he also recognizes that friendships between unequals — parent and child, elder and younger, benefactor and beneficiary — are possible. Such friendships require proportional affection: the superior party should be loved more than they love, or the inferior party should give more affection than they receive. The principle is that the affection should be proportional to the worth of the parties, so that the relationship remains balanced despite the inequality of status or power.

This strikes modern readers as uncomfortable, and it should be read with care. Aristotle is not endorsing hierarchy for its own sake. He is recognizing that relationships between people of very different power or virtue face structural strains, and that the strains must be addressed if the friendship is to endure. The contemporary lesson is not that we should accept Aristotelian hierarchies, but that we should be honest about the conditions under which friendship can flourish. A relationship in which one party has all the power and the other has none is not friendship, no matter how warm the feelings involved.

Practical Meaning

The Aristotelian account of friendship is not a historical curiosity. It gives practical guidance for the cultivation of relationships today. The first lesson is honesty about what kind of friendship one is in. Many of the relationships we call friendships are utility or pleasure friendships, and there is nothing wrong with that. The mistake is to treat them as though they were more than they are — to expect the durability of virtue friendship from a relationship grounded in shared work or shared amusement.

The second lesson is that complete friendship is demanding and rare, and that this is not a failure to be remedied but a feature of the thing itself. The person who is disappointed that they have only one or two complete friends has misunderstood the nature of the relationship. Complete friendship requires the mutual recognition of virtue, and virtuous people are not common. It requires time and shared activity, and these are finite. It requires the willingness to be known, and this is risky. The rarity of complete friendship is a consequence of its demands, not a sign that something has gone wrong.

The third lesson is that the cultivation of friendship and the cultivation of character are inseparable. Aristotle is insistent that complete friendship is possible only between virtuous people. This does not mean that one must achieve moral perfection before one can have friends. It means that the quality of one's friendships depends on the quality of one's character, and that the work of becoming a better person is also the work of becoming capable of deeper friendship. The person who is honest, reliable, generous, and steady will attract and sustain friendships that the person who is none of these things cannot.

Common Questions

Can you have complete friendship with someone whose views you disagree with? Aristotle's account suggests that the answer is yes, provided the disagreement does not extend to the fundamental shape of character. Complete friendship is grounded in the recognition of virtue, not in agreement on every question. Two people can disagree about politics or taste and still recognize the good in each other. But if the disagreement extends to what counts as good — if one person holds that cruelty is acceptable and the other does not — then the ground of complete friendship is absent.

Is Aristotle's account too demanding? It is demanding, but Aristotle would argue that this is appropriate. Friendship is a serious matter, and a philosophical account of it should not pretend that it is easier than it is. The demand is not that everyone achieve complete friendship, but that those who wish to understand what friendship can be should know what the highest form requires. The lower forms are legitimate goods, and Aristotle does not deny them. He insists only that we distinguish them from the thing itself.

Related Knowledge

Aristotelian friendship connects to several threads of inquiry on ZHAIBIAN. The Friendship archive develops the broader concept, while Virtue examines the character that complete friendship requires and The Good Life explores the flourishing that friendship serves. For the broader tradition, see Greek Philosophy. The primary text is the Nicomachean Ethics, and the most important thinker is Aristotle. For a comparative view, What Is Friendship? examines the concept across Greek and Stoic traditions, and How to Build Friendship develops the practical implications.

Sources

• Stanford Encyclopedia of Philosophy, Aristotle. Context for the analysis of philia and the broader framework of the Nicomachean Ethics.
• Stanford Encyclopedia of Philosophy, Friendship. Comprehensive overview of philosophical treatments of friendship, including the Aristotelian account and its reception.