The Symposium

Plato

The ideas

30 ideas. Scroll sideways for the next one.

• What do you really want when you love someone? At a dinner in Athens, a group of friends decided to skip the heavy drinking and take up that question instead. Each man would give a speech in praise of Love, the god of desire, in turn around the room.

• The party reaches you secondhand. A man named Apollodorus repeats, years later, what a barefoot follower of Socrates named Aristodemus told him. Both men admit they forgot parts of the speeches.

• Phaedrus opens by calling Love the oldest god and the source of courage. A lover caught being a coward would feel worse in front of the one he loves than in front of his own father. So an army of lovers, he says, could beat the world.

• “Love will make men dare to die for their beloved—love alone; and women as well as men.”

• His proof is Alcestis, who died in her husband’s place when his own parents would not. The gods sent her back from the dead. Orpheus tried to sneak into the underworld alive instead of dying for his wife, and the gods gave him only a ghost of her.

• Pausanias says there are 2 kinds of love. The common kind wants a body and leaves when youth fades. The heavenly kind loves a person’s mind and character, and it lasts a lifetime. He says a quick attachment is a bad sign, since only time shows which kind you have.

• His speech rests on an Athenian custom the whole party takes for granted: a grown man courting a young man just growing his first beard, and teaching him in return. Pausanias argues the boy may give in only to a lover who will make him wiser and better.

• Aristophanes gets hiccups and swaps turns with Eryximachus, a doctor. The doctor finds Love in everything: health, music and good weather all come from opposites like hot and cold brought into agreement. It is ancient medicine, long since replaced.

• Aristophanes, the comic poet, tells a myth. People were once round, with 4 hands, 4 feet and 2 faces, and came in 3 kinds: male, female, and both at once. They grew proud and attacked the gods, so Zeus cut each one in half.

• Ever since, each half has hunted for its match, and when 2 halves meet they can’t bear to part or say why. Aristophanes puts it this way: “the desire and pursuit of the whole is called love.”

• Agathon, the host, gives the prettiest speech of the night: Love is young, soft, just, brave and wise. Socrates says he can’t praise like that. The others piled every fine quality onto Love whether it was true or not, and he will only tell the truth.

• Socrates gets Agathon to agree that love is always love of something, and that you only want what you lack. If love wants beauty, then love lacks beauty. Agathon admits he did not understand his own speech.

• Socrates says he learned about love from Diotima, a wise woman from Mantinea, who once questioned him the same way. No other ancient record names her, so whether she lived is still argued. Hers is the only woman’s voice to reach this all-male room.

• In Diotima’s telling, Love is neither a god nor a mortal but a spirit in between. He was born to Plenty and Poverty, so he is always poor, barefoot and sleeping in doorways, yet always scheming after what is fine and good.

• “No god is a philosopher or seeker after wisdom, for he is wise already; nor does any man who is wise seek after wisdom. Neither do the ignorant seek after wisdom.”

• People who know nothing feel no lack, so they never go looking. The searchers are the ones in the middle, who know they don’t have wisdom and want it. Love, Diotima says, is one of them.

• “you hear people say that lovers are seeking for their other half; but I say that they are seeking neither for the half of themselves, nor for the whole, unless the half or the whole be also a good.”

• What people love in the end is the good. They want it to be theirs, and to stay theirs always.

• Love wants more than to look at beauty. It wants to make something in its presence: children from the body, or ideas and good laws from the mind. She says mortals do this because it is their only way to share in living forever.

• Your hair, blood, bones, moods and knowledge are always being lost and replaced. Ambition runs on the same hunger: people risk more for lasting fame than for their children. Lawgivers like Solon got temples for the laws they left, and nobody ever got one for ordinary children.

• Then Diotima gives Socrates the higher steps. You begin by loving 1 beautiful body. Then you see the same beauty in every body, and loving just 1 starts to seem small. From bodies you move to minds, then to laws and customs, then to kinds of knowledge.

• “from the beauties of earth and mount upwards for the sake of that other beauty, using these as steps only, and from one going on to two, and from two to all fair forms, and from fair forms to fair practices, and from fair practices to fair notions.”

• At the top you see beauty itself, which never grows, fades or changes, and which every beautiful thing borrows from. Someone who has seen it brings forth real goodness instead of copies of it. Socrates says he believes her.

• The phrase platonic love came much later, from Marsilio Ficino in 1469. Today it means love with no desire in it. Diotima’s ladder starts from desire for 1 body and climbs from there.

• Late in the night Alcibiades, a famous Athenian politician, bursts in drunk and crowned with ivy. He praises Socrates instead of Love.

• “he is exactly like the busts of Silenus, which are set up in the statuaries’ shops … they are made to open in the middle, and have images of gods inside them. I say also that he is like Marsyas the satyr.”

• Socrates’ talk makes him cry, he says, and ashamed of chasing the crowd’s approval. No one else has ever made him feel shame. So he runs from Socrates and has sometimes wished him dead, knowing he would grieve.

• He admits he once tried to seduce Socrates, sure his looks could buy wisdom. Socrates teased that this would be trading brass for gold. Alcibiades spent the night under his cloak, and nothing happened. He woke as if he had slept beside his father.

• At Potidaea, Socrates marched barefoot on ice and once stood thinking from dawn until the next sunrise. He saved the wounded Alcibiades and let him take the prize for bravery. In the retreat from Delium, he walked so calmly that he and his companion got away untouched.

• By dawn the others are asleep or gone. Socrates is still arguing that a good tragic poet can write comedy too, until Aristophanes and Agathon drift off. Then he gets up, takes a bath, and spends the day as usual.

The book in short

In plain words

You’ve probably heard someone say there’s one special person out there who is your “other half.” Find them, and you’ll finally feel whole. It sounds modern, like something off a phone screen. It’s not. That idea is about 2,400 years old, and it comes from one strange, drunken dinner party in ancient Greece — a night when a room full of men tried to figure out what love actually is, and one of them said something so weird about it that people still repeat it today.

Here is the story of that night.

A party where nobody wants to drink

A young writer named Agathon had just won a big prize for a play. So his friends came over to celebrate. The trouble was, they’d been drinking hard the night before, and everyone’s head hurt. So they made a deal: go easy on the wine tonight. Send the music away. Do something quieter instead.

Someone had an idea for a game. Each of them would take a turn making a little speech about love. Not love in general, but the Greek idea they called Eros — which is stronger than the English word. Eros means wanting. Aching for something. The pull you feel toward what you don’t have.

So they went around the room. One man said love makes you brave — that you’d rather die than look like a coward in front of someone you love. Another talked about which kinds of love are worth having. A doctor stood up and said love isn’t only between people; it’s in music, in the seasons, in the whole world, wherever two opposite things come together and get along. Some of it was clever. But the speech everyone remembered came from a man who wrote comedies for a living.

The night we got cut in half

Long ago, he said, people didn’t look the way we do now. Each person was round. Two faces on one head. Four arms, four legs. It was like two people joined back to back, rolling around the world.

These creatures were strong, and they got proud, and one day they tried to climb up and take the place of the gods. That was a mistake. The king of the gods, Zeus, decided to make them weaker. So he cut every single one of them right down the middle, the way you might slice an egg with a hair. Where there had been one round creature, now there were two sad, thin halves.

And ever since that day, he said, each half walks around the world feeling that something is missing. When one half finally bumps into its matching half, the two throw their arms around each other and don’t want to let go. That, he told the party, is what love is. Love is looking for the piece of you that got cut away. It’s why the person you fall for feels less like a stranger and more like something you lost a long time ago.

It’s a funny story. But it gets one thing exactly right: love really does feel like finding a missing piece. Hold onto that feeling — because before the night was over, someone was going to poke a hole in it.

You only want what you’re missing

His name was Socrates, and he was famous in the city for being ugly, poor, barefoot, and impossible to argue with. He didn’t like giving speeches. He liked asking questions until the person he was talking to got tangled up in their own answers. So instead of praising love, he turned to Agathon, the host, and asked him a few simple things.

When you love, he asked, do you love something, or nothing at all? Something, of course. And do you want a thing you already have, or a thing you don’t have? Well — the thing you don’t have. Nobody wants what’s already sitting in their pocket.

There was the trap. All night, people had been calling love beautiful and perfect and complete. But if love is always wanting something, then love doesn’t have that something yet. Love can’t be the beautiful, finished thing. Love is the wanting itself. It isn’t a rich, happy god who has everything. It’s more like someone poor and hungry, standing barefoot in a doorway, always reaching for what’s inside and never quite getting it.

That flipped the whole party around. They’d had it backwards. Love isn’t fullness. Love is a kind of hunger.

The woman who taught Socrates

Then Socrates said something that surprised everyone in the room. Everything he knew about love, he told them, he’d learned from someone else — a wise woman named Diotima. Nobody today knows for sure whether Diotima was a real person, because no other old writing mentions her. But in Socrates’ story, a room full of clever men heard the smartest idea of the night from a woman who wasn’t even there.

She had taught him that love lives in the middle of things. It isn’t a god, because gods already have everything they want, so they never need to reach for anything. And it isn’t a plain, ordinary thing either. Love is stuck in between — always reaching, never finished. And that, she said, is exactly why love is so much like wanting to be wise. You only go looking for wisdom if you know you don’t have it yet. The people who think they already know everything never learn a single thing. The ones who ache to understand — those are the ones who grow.

Then she asked the real question. All this wanting — what is it actually for? Underneath it all, she said, people want one thing: to not disappear. We know we won’t live forever, so we try to leave something behind that lasts longer than we do. Some people do that by having children who go on after them. Others do it by making something that outlives them — a song, a story, a brave act people keep telling, an idea that gets passed down for hundreds of years. Deep down, love is the wish to make something that won’t die when you do.

The staircase

And then Diotima described love as a set of stairs, with a person on every step.

It starts small, at the bottom. Maybe you fall hard for one person’s face. You can’t stop looking at it. That’s the first step, and there’s nothing wrong with it — but it’s only the first step.

Climb up one, and something changes. You notice it isn’t only that one face. Lots of people are beautiful. The thing you loved so much wasn’t trapped inside that single person after all.

Climb again, and you meet someone whose looks are nothing special — but whose mind is amazing to be around. And you realize a good person is worth far more than a pretty face. You start caring about who someone is.

Keep going, and you begin to love good things themselves: kind ways of living, fair rules, real knowledge, the stuff that makes life better for everyone and not just you.

And at the very top of the stairs is the thing that all beautiful things borrow their beauty from. Diotima called it beauty itself. It doesn’t get old or fade, and it won’t let you down the way a person can. It’s the difference between loving one song and loving music — the whole enormous thing that every good song is just a small piece of.

Here’s the catch, and it’s the saddest part. Almost everybody stops on the bottom step. They spend their entire life staring at one pretty face, sure that’s all there is, never once looking up. The whole staircase was standing there the entire time, and they never climbed it.

The drunk boy at the door

Just then there was a crash at the door.

A young man named Alcibiades fell into the room — the best-looking, richest, most spoiled young man in the whole city, drunk out of his mind and covered in ribbons. He was told to make a speech about love like everyone else. He refused. He’d talk about Socrates instead, and being drunk, he’d tell the embarrassing truth.

Socrates, he said, looks like one of those little statues of Silenus sold in the sculptors’ shops — ugly, with the face of a wild goat-man. But those statues open up in the middle, and inside them there are tiny gods made of gold. That’s exactly what Socrates is. Plain and ugly on the outside. Full of gold within.

Then Alcibiades admitted something that made him look foolish. He had been so certain his own good looks could buy him anything he wanted, that he’d tried to trade them for Socrates’ wisdom. He was sure Socrates wanted him the way everyone wanted him. But Socrates simply wasn’t interested — not because Alcibiades wasn’t beautiful, but because Socrates had already climbed past that bottom step long ago. A pretty face couldn’t buy him, because his hands were already full of something better.

And that was the answer the whole party had been circling all night. They had taken turns praising love with fancy speeches. But the real proof wasn’t in any speech. It was sitting right there in the room the entire time — a barefoot, ugly old man who couldn’t be bought, because he’d already climbed the stairs the rest of them were still standing at the bottom of.

Most of us spend our whole lives on that first step, staring at one face, certain it’s everything. The old man’s secret was almost too simple. He looked up.

The long read

One evening in Athens, a man named Aristodemus runs into Socrates freshly bathed and wearing sandals — both rare enough to be worth mentioning — on his way to a dinner. Socrates is going to celebrate at the house of Agathon, a young playwright who has just won first prize for his first tragedy, and he brings Aristodemus along uninvited. On the way Socrates falls silent, drops behind, and finally stops on a neighbor’s porch, lost in thought, while the other man goes ahead and sits down to dinner without him. Socrates arrives halfway through the meal. This is how Plato opens his account of a single dinner party — with the philosopher late, barefoot most days, standing motionless in a doorway. The evening that follows is a contest of speeches about love, and by the end you understand that the strange man in the doorway is the argument’s real subject.

A party that decides to talk instead of drink. The men at Agathon’s table are hungover. They drank hard the night before, so tonight they send the flute-girl away, agree to go easy on the wine, and look for something to do. One of them, Phaedrus, has a complaint: the god of love, Eros, never gets the praise he deserves. Poets hymn every other god; this one they neglect. So they make a game of it. Each man in turn will give a speech in praise of Eros, going around the couches from left to right. A word on that word: the Greek erōs is not the soft, tidy thing English “love” suggests. It is desire, want, the pull toward something you lack — closer to longing or hunger than to affection. Keep that in mind, because the whole evening is really an argument about what human longing is for.

Phaedrus: love makes you brave. The first speaker keeps it simple. Eros is among the oldest of the gods, and he is the greatest source of courage and honor. A man in love would rather die than be seen as a coward by the one he loves. Shame in front of the beloved, and the wish to be admired by him, drive men to noble things. Phaedrus reaches for examples: Alcestis, who agreed to die in her husband’s place; Achilles, who avenged his companion Patroclus knowing it would cost him his own life. “Love will make men dare to die for their beloved—love alone; and women as well as men.” It is a young man’s speech — earnest, a little thin — and Plato lets it stand as the ground floor.

Pausanias: there are two kinds of love, and only one is worth having. The next speaker sharpens things by drawing a distinction that will echo through the rest of the evening. There is not one Eros but two, he says, because there are two goddesses named Aphrodite. Common Love (Aphrodite Pandemos) is the ordinary kind — aimed at bodies, indifferent to the person, as happy with a woman as with a boy, interested only in getting what it wants. Heavenly Love (Aphrodite Ourania) is aimed at the soul, at the mind and character of the beloved, and it seeks not gratification but the improvement of both people. Here we meet the social world the dialogue takes for granted, which a modern reader has to see clearly rather than around: the assumed picture of love is an older man (the erastēs, the lover) courting a younger one (the erōmenos, the beloved), and much of Pausanias’s speech is a lawyer’s brief defending that arrangement — when, he says, it is done for the sake of virtue rather than mere pleasure. His point that survives the setting is the distinction itself: love aimed at a body and love aimed at a person are different in kind, and only the second makes anyone better.

Eryximachus: love runs through everything, not just people. Then a doctor speaks, and he expands the whole frame. Love, he says, is not merely something between two human beings; it is a principle at work throughout nature. His trade is medicine, which he understands as the art of producing love and harmony between the opposed elements of the body — hot and cold, wet and dry, drawing them into agreement. The same balancing of opposites, he claims, is what music does with high and low notes, what the seasons do with heat and frost, what holds together the health of bodies, weather, and the heavens alike. It is a stretch, and Plato half-plays it for a laugh (the doctor is pompous), but a real idea sits underneath the pomp: love as the force that reconciles what would otherwise pull apart. The party’s picture of Eros is widening — from courage, to character, now to the order of the cosmos.

Aristophanes: we are each looking for our missing half. The comic playwright gives the speech everyone remembers. Long ago, he says, human beings were not shaped as they are now. Each of us was round, with four arms, four legs, two faces on one head — a doubled creature. There were three sexes: some wholly male, some wholly female, some half-and-half. These beings were powerful and proud, and they threatened the gods, so Zeus cut each of them in two, the way you slice an egg with a hair, and turned their faces around toward the cut so they would always see what they had lost. Ever since, each half wanders the world hunting for the other. When two halves find each other they cling together, unwilling to be parted even for a moment, because “human nature was originally one and we were a whole, and the desire and pursuit of the whole is called love.” It is comedy, and it is also the most emotionally true thing said all night — the account that matches how being in love actually feels, as a recognition of something missing and suddenly found. Notice, too, that Aristophanes explains why people love the way they do: the sex you were split from is the sex you now seek. Hold on to his image of love as the pursuit of a lost wholeness, because Socrates is going to challenge it directly.

Agathon: a beautiful speech about a beautiful god, and almost nothing else. The host speaks next, and because he is a prize-winning poet his speech is the most polished — and the emptiest. Every earlier speaker praised what Eros does; Agathon insists on describing what Eros is. He is not the oldest god, as Phaedrus said, but the youngest; not stern but tender, delicate, graceful, dwelling in soft places, the most beautiful and most virtuous of the gods. The words are lovely and the reasoning is air. When he finishes, everyone applauds. Socrates, sitting beside him, says he is now afraid, because he thought he understood love and it turns out he only knows how to tell the truth about it, which is a poor thing to bring to a speech contest that seems to reward praising a subject whether or not the praise is accurate.

Socrates springs the trap: you only desire what you lack. Instead of giving a speech, Socrates first asks Agathon a few questions — the method that runs through all of Plato. Love is always love of something, yes? Yes. And does a man desire what he already has, or something he lacks? Only what he lacks. Then here is the difficulty: Love is love of beauty, of beautiful things — Agathon himself just said so. But if you desire what you lack, then Love lacks beauty. And whatever lacks beauty cannot itself be beautiful. In a few quiet moves the whole gorgeous speech collapses. Eros is not the beautiful, blessed god Agathon described; Eros is need. This is the hinge of the dialogue: love is not a possession but an emptiness reaching for what would fill it.

Diotima: love is a spirit in between. Now Socrates does something odd for the confident philosopher — he says that everything he knows about love he learned from a woman, Diotima of Mantinea, a seer said to have once put off a plague for 10 years, and he will simply repeat what she taught him. (Whether Diotima was real or Plato’s invention, the choice to put the dialogue’s highest teaching in a woman’s mouth, in a room of men who otherwise treat women as absent, is one of the deliberate strangenesses of the text.) She began where Socrates left off. If Love lacks beauty and goodness, does that make Love ugly and bad? No — Love is between. He is not a god, because the gods already possess what is good and beautiful and so do not long for it; but he is not merely mortal either. He is a great spirit, a daimon — not a demon in our sense but an in-between being, a messenger traveling between gods and humans. His parentage tells the story: at Aphrodite’s birthday feast, Poverty, begging at the door, lay down beside Plenty, who had drunk too much nectar, and conceived a child. So Love is forever poor, barefoot, homeless, sleeping in doorways — and forever scheming after the beautiful and good, resourceful, bold. (The portrait is, unmistakably, Socrates himself, barefoot in the doorway where the dialogue began.) Above all, Love is a philosopher. The word means, literally, a lover of wisdom — and only someone who lacks wisdom but knows he lacks it will pursue it. Gods, being wise, don’t philosophize; fools, not knowing they are ignorant, don’t either. “No god is a philosopher or seeker after wisdom, for he is wise already; nor does any man who is wise seek after wisdom.” Love lives exactly in that gap, wanting what it hasn’t got. “Love is of the beautiful; and therefore Love is also a philosopher or lover of wisdom, and being a lover of wisdom is in a mean between the wise and the ignorant.”

What love is really after: to last forever. Then Diotima presses on the question no earlier speaker asked: what is love actually for? People say lovers seek their other half, she notes — a direct nod to Aristophanes — but that can’t be the whole of it, because we would cut off our own hand or foot if it turned diseased; we don’t love what is ours, we love what is good. So: love is the desire that the good be one’s own — and not just now, but always. “Then love … may be described generally as the love of the everlasting possession of the good.” And here she turns it: what does love do to reach that? It gives birth. “The object which they have in view is birth in beauty, whether of body or soul.” Mortal creatures reach for the everlasting the only way they can, by making something that outlasts them. At the level of the body, that is having children. At the level of the soul, it is bringing something lasting into the world — poems, laws, brave deeds, wisdom, the works that carry a person’s name past their death. “love is of the immortal … the mortal nature is seeking as far as is possible to be everlasting and immortal.” Underneath the longing for a particular beautiful person, she says, is a deeper longing: to not disappear.

The ladder of love. This is the passage the dialogue is built to reach — later readers named it the ladder, or the ascent. A person schooled in love, Diotima says, begins young by loving one beautiful body. But if he is guided well, he notices that what makes one body lovely is the same thing that makes any other lovely, and it would be foolish to prize a single one and ignore the rest — so he comes to love all physical beauty, and the fever for one body cools. Next he sees that a fine soul is worth more than a fine face, so that he can love a good mind housed in a plain body. From souls he is led to what is admirable in how people live — in laws, customs, institutions — and then to the beauty of knowledge itself. And at the top of the climb, if he gets there, he glimpses something that was the goal all along: beauty itself. Not a beautiful face or law or idea, but “beauty absolute, separate, simple, and everlasting, which without diminution and without increase, or any change, is imparted to the ever-growing and perishing beauties of all other things.” The steps matter as steps: you rise “from the beauties of earth … using these as steps only, and from one going on to two, and from two to all fair forms, and from fair forms to fair practices, and from fair practices to fair notions.” To reach the height is to stop chasing images of beauty and finally touch the real thing — “beholding beauty with the eye of the mind, he will be enabled to bring forth, not images of beauty, but realities.” That, Diotima says, is “that life above all others which man should live, in the contemplation of beauty absolute.” Erotic longing, followed honestly all the way up, turns out to be the same drive as philosophy: the desire that pulls you toward a beautiful body is, at bottom, the desire that pulls the mind toward truth.

Alcibiades: the god crashes the party. Just as Socrates finishes, there is a pounding at the door. Alcibiades — the most beautiful, most famous, most reckless young man in Athens — stumbles in blind drunk, crowned with ribbons, held up by a flute-girl. He is told to praise Eros like everyone else, but he refuses; he will praise Socrates instead, and he will tell the truth, drunk enough not to care how it looks. Socrates, he says, is exactly like the little carved figures of Silenus sold in the shops — ugly on the outside, with a satyr’s face, but “they are made to open in the middle, and have images of gods inside them. I say also that he is like Marsyas the satyr,” the flute-player of myth whose music put men into a trance. Socrates does it with plain words about pack-asses, smiths and cobblers, and no one else’s speeches have ever seized Alcibiades the way this ugly man’s do. Then he confesses something humiliating: he was so sure his own beauty could buy Socrates’ wisdom that he tried, more than once, to seduce him — and Socrates, who seemed to burn for him, felt nothing, spent the night beside him untouched, and treated the whole offer with amused indifference. He describes Socrates on military campaign: barefoot on the ice, going without food longer than anyone and out-drinking everyone when he chose to drink, standing in one spot thinking from dawn to dawn, saving Alcibiades’ life in battle and then insisting Alcibiades get the prize for valor. The point of the drunken speech is not gossip. Alcibiades, without quite knowing it, is showing us the man who has actually climbed Diotima’s ladder — the one person at the party who is genuinely immune to the pull of a beautiful body, because he is held by something higher up the stairs.

The party dissolves. More revelers force the doors; the ordered game breaks down into ordinary drinking, and Aristodemus falls asleep. He wakes near dawn to find almost everyone gone or unconscious, and Socrates still talking — pressing the tragedian Agathon and the comedian Aristophanes to admit that the same man ought to be able to write both comedy and tragedy, that the skills are one. The two poets, half-asleep, can’t keep up and drift off. Socrates gets up, washes, and goes about his day as usual, as though he had not been awake all night out-drinking and out-arguing the whole of Athens. The philosopher who arrived late and barefoot leaves last and sober. He is the living answer to the question the party set out to praise.

What Plato leaves you with. Every speaker was partly right. Love does make us brave, and it does seek a lost wholeness, and it does run wider than any couple. But Plato’s real claim is that human longing has a direction built into it. The desire for one beautiful body and the desire to understand the world are not two different hungers; they are the bottom and the top of a single staircase, and most people stall on the lowest step, mistaking the rung for the destination. Love, followed all the way, is not something that happens to you. It is the force that carries a mind toward what is permanently true — and the proof of it is not an argument but a person, standing motionless in a doorway, thinking.

One real line. “human nature was originally one and we were a whole, and the desire and pursuit of the whole is called love.” — Plato, Symposium (Aristophanes’ speech).

What didn’t hold. These are not failed experiments — the Symposium is a work of philosophy, and its seams are the places where later readers and thinkers push back, not findings that were disproven.

• The ascent treats persons as rungs. The dialogue’s most famous philosophical objection, sharpened by the scholar Gregory Vlastos in the 20th century, is that Diotima’s ladder loves beauty, not people — the individual beloved is a step you climb past on the way to the Form, valuable for the beauty he shares with everyone else, not for being irreplaceably himself. Much later thinking about love (that we love the particular person, not their instance of a general quality) reads as a direct answer to this passage.
• The idealized older-lover / younger-beloved frame. The dialogue assumes, and several speakers defend, a specific Athenian institution of courtship between an older man and an adolescent boy. Modern readers rightly can’t take that framing as neutral; the durable ideas (love aimed at the soul rather than the body; longing as the engine of philosophy) survive when lifted out of it, which is how they’re usually read now.
• Diotima’s voice, in a room without women. Plato gives the highest teaching to a woman while the dialogue’s social world otherwise treats women as absent or instrumental. Whether she lived is itself open: no ancient source outside the Symposium names her, and every later mention derives from it. Readers have argued this both ways — as a quiet subversion and as a hollow gesture — and it remains a live interpretive tension rather than a settled point.
• Bodily birth ranked beneath spiritual birth. Diotima ranks having children below producing ideas, poems, and laws. It is a hierarchy the text asserts more than argues, and one many later readers decline to accept.
• The phrase platonic love is not here. Marsilio Ficino coined it (amor platonicus) in his 1469 commentary on this dialogue, and its modern sense, love with no desire in it, is not Diotima’s ladder, which starts from the love of one beautiful body.

For the little ones

This book as stories to read aloud, each with a note for the grown-up.