Symposium

The first speeches build a kind of staircase. Phaedrus opens with love as the oldest and most ennobling of forces — the thing that makes people brave, because no one wants to look like a coward in front of someone they love. Pausanias corrects him by splitting Eros in two: a common love, aimed at bodies and gratification, and a heavenly love, aimed at character and mind. This is where the book becomes frank about its world. The love Pausanias praises is that between an older man and a younger one, and much of the dialogue assumes that setting as the natural home of the highest affection — a fact modern readers have to sit with rather than smooth over.

Then the register shifts. Eryximachus, a doctor, hijacks Eros for medicine and cosmology, arguing that love is really the principle of balance running through bodies, music, weather, the whole universe. It is the driest speech, and Plato seems half to be teasing the professional who reduces desire to a theory of harmony. The point lands anyway: even the physician cannot resist making love the key to everything he already knew about.

Aristophanes tells a myth that has outlived its author's intentions. Once, he says, human beings were round, doubled creatures with four arms, four legs, and two faces — some male-male, some female-female, some male-female. They were powerful enough to threaten the gods, so Zeus sliced each of them in two, and ever since, every half wanders the earth looking for the other half it was cut from. That searching is what we call love: not a desire for pleasure, but a longing to be made whole again, to fuse back into the creature we once were.

It is a comic story, told by a comedian, and Plato clearly means some of it as a joke. But it is also the first place in Western writing where romantic desire is described as the pursuit of a missing other half, and where same-sex and opposite-sex attraction are given the same mythic origin, treated as variations of one human longing rather than as separate categories. People today reach for it to talk about soulmates, about being someone's other half, about the orientation of desire — often without knowing they are quoting a two-thousand-year-old joke that Plato may have wanted us to smile at even as it moves us.

Strip away the couches and the wine, and the Symposium is a book about what desire reveals. Its guests disagree on almost everything, but Socrates plants an idea that outlasts the disagreement: we want what we lack. Desire is not a sign that we are full and overflowing; it is a sign that we are incomplete, reaching for something we do not possess. That single move turns love from a topic into a mirror. Tell me what you long for, the book implies, and I will tell you what kind of being you are — a creature defined less by what it has than by what it is missing.

This is why the dialogue keeps getting drafted into modern arguments it never anticipated. When people debate whether attraction is fixed or fluid, whether gender categories are natural or made, whether the point of love is union or self-transcendence, they are, often unknowingly, redistributing the speeches of that Athenian dinner. Aristophanes gave us the language of halves and wholeness. Diotima gave us the idea that eros can be redirected upward, sublimated into art or thought — a notion that runs, quietly, all the way to Freud. The party did not settle these questions; it opened them, and left them open.

By dawn the party has thinned out. Most guests are asleep or gone; Socrates is still talking, arguing to a fading Agathon and Aristophanes that the same person should be able to write both comedy and tragedy — before he too gets up, washes, and goes about his ordinary day. The great night of speeches ends not with a conclusion but with people drifting off, half-convinced, half-drunk, carrying different versions of what was said. Plato lets the evening dissolve the way real conversations do, without a verdict.