What Is Philia?

Quick Answer

Philia is the ancient Greek word for friendship and affectionate love. It covers more than modern "friendship": it includes love of family, of fellow citizens, and of companions. In Aristotle, philia is a major topic of ethics, treated in two full books of the Nicomachean Ethics, because he regarded it as necessary for a flourishing human life.

The philosophical interest of philia lies in its structure: it is a mutual, reciprocal love between people who wish each other well for their own sakes. Unlike eros, it is not primarily about desire; unlike agape, it is not love extended to all regardless of merit. Philia is the love of those we have chosen to share our lives with.

What Is Philia?

Philia derives from the Greek verb philein, "to love" or "to regard with affection." In Greek culture it covered family bonds, political solidarity, guest-friendship, and the love of friends. What unites these is mutual goodwill and some form of shared life.

The SEP entry on friendship notes that philia, unlike modern friendship, extended to family members and fellow citizens, and that it involves more than feeling: philia is a relationship grounded in care for the other's good, intimacy, and shared activity. It is love, but love of a distinctive, reciprocal kind.

Historical Background

Aristotle gives the classic account in Books VIII and IX of the Nicomachean Ethics. He distinguishes three kinds of friendship by their basis. Friendships of utility are based on mutual benefit; friendships of pleasure on mutual enjoyment. Both dissolve when the benefit or pleasure ends. Friendships of virtue are based on mutual recognition of good character and wish each other well for their own sake. These are rare, stable, and the most valuable.

Cicero's On Friendship (Laelius) adapts Aristotle for a Roman audience and emphasizes that true friendship is possible only between good people and is one of the greatest goods. The Epicureans also prized friendship, though they grounded it in a sophisticated account of self-interest and trust.

C. S. Lewis, in The Four Loves, revived the term for modern readers, treating friendship as a distinct and noble form of love — the love of companions facing the world together.

Key Arguments

Aristotle argues that virtue friendship is essential to eudaimonia, the flourishing life. His reasons: human beings are social by nature; virtue is realized in shared activity; and friends are "other selves" through whom we come to know and complete ourselves. No one, he says, would choose to live without friends even if they had every other good.

A second argument concerns the reciprocity of philia. Because philia is mutual, it requires equality and time: friends must know each other's character and share enough of a life to trust each other. This is why Aristotle says one cannot have many true friends, and why philia cannot be rushed.

A third argument distinguishes philia from the other loves. Lewis's treatment shows why friendship is not a lesser form of eros or a dilute form of agape: it has its own goods — shared interests, mutual recognition, the joy of companionship — that the other loves do not provide.

Contemporary Relevance

The concept of philia is valuable today because modern culture tends to subordinate friendship to romance. Aristotle's account reminds us that deep friendship is a form of love with its own dignity, that it requires character and time, and that it is essential to well-being. Reflecting on philia helps people value and cultivate their friendships with the seriousness they deserve.

This discussion is philosophical and educational. It is not relationship advice or therapy.

Sources

• Stanford Encyclopedia of Philosophy, "Friendship".
• Stanford Encyclopedia of Philosophy, "Love".
• Stanford Encyclopedia of Philosophy, "Aristotle's Ethics".
• Aristotle, Nicomachean Ethics, trans. Terence Irwin (Hackett, 2019), Books VIII-IX.
• Cicero, On Friendship, trans. W. A. Falconer (Harvard University Press, 1923).

Related Topics

Philia belongs to the ancient taxonomy of love. See What Is Eros? and What Is Agape? for the other members, and What Is Friendship? for the modern philosophical treatment. The Philosophy of Friendship hub and the Love, Emotion & Connection collection trace these themes across traditions.