Tonight, a different app. Not my friend's, from earlier in the series — yours, perhaps: the kind of app people open to find someone to love.
You know how it works. A photograph, a few lines, a list of what a person is like. And the whole thing runs on a single action: move on. Not quite right — move on. Funny, but — move on. The moment you hesitate over one profile, another is ready, marginally kinder, marginally funnier, marginally more of whatever it was that made you pause. There is always a slightly better option one motion away, and the app is built to keep you moving toward it.
Most of us feel, somewhere, that this is love gone wrong. It is the common complaint: that the apps have turned people into a catalogue, that no one stays because someone fractionally better is always one screen away, that the whole system trains us to keep trading up and never to arrive. We treat this replaceability as a modern sickness — something the technology did to us.
Here is what I found when I went looking, and it stopped me. That pattern — loving people for the qualities they carry, and moving past each one toward a better set of those qualities — was described in detail by Plato, in one of the most admired things ever written about love. And Plato did not think the pattern was a disease.
He thought it was the cure. He thought that moving through it was the closest a human being ever comes to the divine.
So tonight we go back. Last week I said that the difficulty you are facing — five theories of love, no way to settle between them, no fact of the matter about what the copy is missing — is not a modern muddle invented by a chatbot. Tonight I owe you the evidence. And the way to show that a difficulty is not simply the shape of reality is to find where it was built, who built it, and what they were after when they did. The argument you are inside has a history. Tonight we go and get it.
This is Philosophy for Us — philosophy for everyone, no degree required. This is the eighth of nine episodes on what love is a response to, and so on what loving someone actually commits you to.
A quick recap, because tonight follows directly from last week. Last week we built the hardest case we could: a perfect copy of someone you love, every admirable quality turned up to full, and a shared past of exactly nothing. We put that case to five serious theories of love and asked each the same question: what would the copy be missing? We got five answers that do not reconcile. Two said nothing is missing. The other three pointed to three different absences — and two of those three said the absence had nothing to do with a shared past at all. The important finding was not the disagreement itself. It was that there is no sixth position — no neutral place to stand and judge which theory reads the case correctly. The answer you give is not read off the case; it is the theory of love you already held when you walked in. The case only made you say it aloud.
And at the end I made a promise. I said this is not new. The exact disagreement — whether you love the person or the qualities they happen to carry, and whether a better carrier could take their place — is old, older than any technology. Tonight I make good on that.
It is worth doing, and not as history for its own sake. When you are caught in a difficulty, the worst thing to believe is that its shape is simply the shape of the world — that this is just how love is, and there is nothing to do but endure it. But concepts are not facts of nature. They have histories. Someone, at some point, settled the idea that love is a response to worth, in a particular way and for particular reasons, and everyone since has lived inside that settlement — including you, at the wedding, unable to finish the sentence. Once you can see that it was settled — see who did it and what they were after — you can also see that it could have gone otherwise. It is a settlement, not a fixed feature of reality.
So there are three parts to tonight. First, the man who set out the ascent and called it holy. Second, the man who, a generation later, examined it and divided it in two. And third, the long correction that followed — two large attempts to reject the ascent and tie love instead to one irreplaceable person — attempts that, I should say in advance, did not succeed. We start with the ascent.
Plato. The dialogue is the Symposium — a drinking party, a room of men taking turns making speeches in praise of love. The speech that matters, the one people have argued over ever since, is one Socrates says he did not compose himself. He says he was taught it years earlier by a woman named Diotima. So the most influential thing said about erotic love in this whole tradition is placed, deliberately, in the mouth of a woman, and reported second-hand by a man at a party. But it is the structure of what she says that we are here for.
Here is the structure. Diotima says that love — erōs, desire — is a response to beauty. You see a beautiful person, and something in you reaches toward them. So far, nothing unusual. Then she makes the move she is remembered for. She says: do not stop there. What you are reaching for is not this body; it is the beauty this body happens to carry. And once you see that, you cannot unsee it, because the same beauty is present in other bodies too. So you move upward. You go from loving one beautiful body to recognising the beauty in all beautiful bodies — and the single body you began with starts to look small, and arbitrary, one instance of something found everywhere. Then higher: the beauty of a mind, she says, is finer than the beauty of a body, so you learn to love a fine mind even in a plain-looking person. Then finer still — the beauty in laws and institutions, then the beauty in knowledge itself. And at the top, if you get there, you stop loving beautiful things one at a time and turn instead to Beauty itself: beauty pure, unmixed, permanent — the thing all those beautiful people and laws and ideas had only ever borrowed from. Diotima calls this the final vision, and the thing a human life is for. It has come down to us under the name the ladder of love, though what the text describes is a climb by stages, one step after another.
Now consider what this does to the person you began with. On the most natural reading — and this reading is contested; Gregory Vlastos pushed it hard in a 1973 essay, and others, Martha Nussbaum among them, in her book The Fragility of Goodness, argue that Plato leaves more room for the actual individual — but on the reading that has caused the trouble, the particular beloved is a step. You do not, in the end, love them. You love the beauty they carry, and you love it on the way up. They are the step that takes you to the next one. And the hard part, which is the substance of Vlastos's complaint, is this: the moment a more beautiful instance appears — a finer body, a finer mind — you are not merely permitted to move on. You are meant to. Staying with a lesser instance when a greater one is available is not loyalty. On this picture it is a failure of vision.
Notice how strange and how familiar that is at once. Strange, because it sounds monstrous — leave the person you love the moment a better one appears? But familiar, because of the dating app. That is the mechanism. The app displays the qualities, separates them from the person, and invites you to keep moving toward a better set of them. The app is Diotima's ascent, mechanised. We experience the swipe as love degraded by technology. Plato would have recognised it as love working just as designed — reaching past the particular person toward the ideal it points at.
And here is the part that matters most, because it is where tonight refuses the easy way out. Do not dismiss Plato here. It would be easy to say: that view is plainly wrong, it is the cold one, the one that treats people as interchangeable, and it is obviously the mistake we are here to correct. Do not. The ascent is neither foolish nor dead. It is the most exalted statement ever written of something half of you believes: that love is a response to something genuinely good in the other person — that you love them for what they are — and that a love which responds to nothing, which would settle on anyone at all, is not love but mere attachment. That instinct is Diotima's, and it is alive now. The appraisal view, which we spent a week on three episodes back — love as a fitting response to real, admirable qualities — is the direct descendant of the ascent, argued in print by serious people today. So when the ascent troubles you, see clearly what is happening. It is not an ancient error you have grown out of. It is one half of an argument you are still having with yourself. Plato simply had it first, and openly, and called the climbing holy.
So that is the ascent. Now the man who examined it and divided it in two: Aristotle. Plato's own student, a generation later, and about as unlike his teacher in temperament as a student can be. Where Plato reaches toward the eternal, Aristotle stays here, with the actual friendships actual people have. In the Nicomachean Ethics — his major work on how to live — he gives two whole books, the eighth and the ninth, to philia. We translate that as "friendship", but it is wider; it covers most of the loves between people — friends, family, husband and wife. And the first thing he does is the thing we have been doing for seven weeks: he says that "love" is too large a word, that it is hiding several different things, and that we should separate them.
He separates them into three. There is friendship of utility — I value you because you are useful to me: my accountant, my contact, the neighbour with the van. There is friendship of pleasure — I value you because you are enjoyable, good company on a Friday night. And there is a third kind, which he calls friendship of the good, or of virtue: between people of genuinely good character, who value each other for what they are.
Now watch what he says about the first two, because he arrives at it long before any chatbot. Friendships of utility and of pleasure, he says, are loves of something incidental. I do not really love you; I love the usefulness, or the enjoyment, and you happen to be the one supplying it. And so — this is his own reasoning — these friendships dissolve easily. The moment you stop being useful, or someone more useful appears, the bond has no reason left to continue. You trade up. Aristotle sets out the logic of the trading-up problem plainly, in the fourth century BCE, as an ordinary observation about a whole class of human love. The replaceable beloved is not a fault someone discovered in modern romance. Aristotle had it named and catalogued long before anyone could imagine a machine that holds a conversation.
But then — and this is why he is not merely a plainer version of Plato — he describes the third kind. Friendship of the good. Here, he says, you love the friend for his own sake: not for what he supplies you, but for who he is in himself. This is the earliest clear statement of the distinction we have been tracing all series — the distinction between loving what someone gives you and loving them. Aristotle draws it, names it, and says the second is the real thing: rare, slow to build, and possible with only a few people.
So you might think: there it is. Aristotle has solved it. Love the person, not the qualities. Done.
Except — look more closely, because he does not escape the difficulty either, and the way he fails to is exactly the way you fail to. Why, on Aristotle's account, are these good friends loved? Because they are good — because of their virtue, their excellent character. So when you love your friend "for who he is", you are loving him for his goodness. And goodness is a quality: a deep one, hard-won, not a cheap one like usefulness or fun, but a quality all the same. So the question returns: are you loving him, or the virtue he carries? And if it is the virtue — what happens when someone more virtuous appears? Has Aristotle actually stepped clear of the ascent, or has he only relocated it — reaching now toward the noble qualities rather than the convenient ones?
He does not answer that. I doubt he saw it as sharply as you are now in a position to — sitting here with the copy at the door, who has every quality, the virtues included. But here is what he did do, and it is large. He put both halves in plain view: the love that tracks what you supply — tradeable, ancient, real — and the love that is meant to be for the person themselves. Both, side by side, in one text, unresolved. Everything we have done this series is a development of that page. He was the first to say plainly that there are at least two entirely different things here, and that we keep calling them by the one name.
So that is the ancient settlement: the ascent, and Aristotle's division that could not quite get clear of it. For the long centuries after, the most powerful currents in Western thinking about love were largely a reaction against the ascent. Two in particular. Both aimed at the same target — replaceability — and you need to see them, because both are alive in you now, and, most importantly for tonight, neither of them succeeded.
The first is Christian love: agape. Its move is a straight reversal of the ascent. Diotima's love moves upward, toward worth — you love what is beautiful, what is good, what is high. Agape moves the other way. God, on this picture, does not love you because you climbed high enough to deserve it, and does not love the saint more than the sinner because the saint scored higher on the qualities. The love is given to the unworthy, freely — to the sinner exactly as much as to the saint. It does not respond to your value; it confers value on you. You matter because you are loved, not the other way round. A theologian, Anders Nygren, in his book Agape and Eros in the nineteen-thirties, drew the contrast as sharply as it has ever been drawn: eros — Greek, Platonic love — is acquisitive, it ascends, it is drawn by the worth of its object; agape is unmotivated, it descends, and it creates worth rather than finding it. If that sounds familiar, it should. Love that confers value rather than responding to it, love that does not ascend — that is the bestowal view, which we spent the second episode on. Irving Singer's view. The most romantic thing you believe: I will love you no matter what. That is agape with the theology removed — the same ancient correction to the ascent, still argued in philosophy journals under a newer name.
The second reaction is Romanticism, and this is the one that actually shaped how you expect love to feel, even if you have never read a line of it. Its whole preoccupation is the unique, irreplaceable individual. Not a type. Not a fine instance of admirable qualities. This one — this specific, particular, unrepeatable person, who could never be exchanged for another however well the other matched on paper, because the entire point is that it was them. If something rose up and refused when I described the copy at the door, that resistance is a Romantic inheritance. And it is the ancestor of the view that pointed most firmly at the missing thing last week: Niko Kolodny's relationship view — it is this one, this history, this unrepeatable person, and no copy inherits it. One caution: it is tempting to sweep all five of last week's theories onto this side, and they do not all belong. Bestowal you have already met tonight, as agape's heir; robust concern we will trace back to Aristotle in a moment. They push back against the ascent too, but each in its own way, not as Romanticism in a modern form. The project here is to attach love to the one irreplaceable individual, against an ascent that kept reaching past them.
So you might now think: good. The corrections arrived and fixed it. The ascent was the cold ancient error, and then agape and the Romantics put love back where it belongs — on the person. The story is over.
No. And this is the part of tonight that matters most. The corrections did not win. They are not the chapter in which love was finally sorted out — because each of them, held on its own, breaks, and breaks in a way you already watched earlier in this series. Take agape: love that is wholly unearned, that responds to nothing in you. We did this in episode two. Held on its own, that love is blind. If it would settle on absolutely anyone, regardless of who they are, then it is not tracking you at all, and it could be directed at a chatbot exactly as easily as at a person. That is not a solution. It is the same problem arriving from the other side. And take the Romantic irreplaceable individual — love this one because it is this one. The moment you ask why, what it is about this one, you are either back to their qualities, which is the ascent again, or you are loving them for the sheer accident of being the person you happened to end up beside — which, as we saw, is the relationship view's own unresolved weakness. The corrections did not close the argument. They became the other side of it. And the ascending view was never overturned. It is in every dating app. It is in every "you could do better". It is in every serious appraisal theory in print. Both sides are still standing, right now, and you have inherited both.
This is what you are actually caught in. Not a modern muddle. Not a problem a chatbot created. The question I could not answer at the wedding — do I love them, or the qualities they happen to carry, and could a better carrier come and take their place — is not my question, it is not new, and the app did not make it. It is the oldest open argument there is about love: between the ascending view, which reaches past the person toward the worth they carry, and the particular, irreplaceable person that view kept reaching past. And in all that time no one has settled it. It has been fought again every few centuries under new names — erōs and agape, the ascent and the irreplaceable beloved — and now, in our corner of it, five theories in a row with nothing to decide between them.
Because that is what those five are. I am not going to run them again tonight — that is next week's work — but you should see where they sit. They are not five random modern opinions. They are the current form of the same ancient argument. Appraisal — love as a response to real worth — is Diotima's heir, the ascent, still reaching upward. Bestowal is agape: value conferred, not found. Robust concern — caring about the person's good for their own sake — takes up Aristotle's "for his own sake", but shifts the weight off the friend's virtue and onto simply caring how their life goes. The relationship view is the Romantic irreplaceable individual, given a rigorous form. Union — the "we" that two people form — sits a little apart from this particular fight; it asks less about worth against the person than about what the two of you become together. But the other four fall on one side or the other of the same old dividing line, in modern form. And the chatbot — your friend's app — is the ascent taken to its endpoint: the thing Diotima's climb was always reaching toward, finally made real — a generated instance of the lovable qualities, with the particular, irreplaceable, finite person removed entirely. Of course it unsettles you. You inherited both sides. You have the ascent and you have the correction, and the app forces you to honour one and betray the other.
Now, your turn. Do not take my word that you are standing in this argument. Find yourself in it. Take the person you actually love, and listen to how you answer, in your own head, when I ask you why. Notice which way you incline. Do you find yourself drawn to the qualities — it is her mind, it is his kindness, it is the way they are in a room, the real and admirable things — and, if you are honest, feeling what is uncomfortable in that: the part where a better set of those qualities would have some claim on you? Or do you find yourself drawn the other way — it is not the qualities, it is that it is them, this one, and a copy matched on every quality still would not be it — and feeling what is uncomfortable in that one: the part where you cannot quite say what "them" even is, over and above everything you could list?
You are going to feel pulled both ways. I promise you will, because I do, and so does everyone I have asked. And here is what that pull is. It is not confusion, and it is not you being bad at this. It is the whole unsettled argument, centuries of it, bearing on this one person, tonight. Two traditions are pulling in opposite directions at once, and you are the one who feels both.
And I am not going to decide it for you. Say the ascent was the cold error and the irreplaceable person the truth: the appraisal theorists are right there, in print, with good arguments, and the "irreplaceable person" answer still has the gap in it I showed you ten minutes ago. Say the reverse, and the same difficulty rises on the other side. The ablest people who have ever lived have divided on exactly this, and stayed divided. What I can tell you — which is what the whole journey back was for — is that it is genuinely open. There is more than one serious way to understand love, there always has been, and the reason you cannot finish the sentence is not that you are failing at it. It is that you are standing at the open end of an argument no one has won.
So what has this hour left you with that you did not bring into it?
This. The difficulty has a definite shape, and that shape was made a long time ago, by people, for reasons you can now see — which means it is not the structure of love itself. It is a settlement. People made it, people contested it, people are contesting it still. The thing constraining you is not reality. It is an argument. And an argument, unlike a fact of nature, is something you are allowed to take a side in — knowingly, with your eyes open, accepting what your side costs. That does not release you from choosing. If anything it makes the choice heavier, because you can no longer pretend there was only ever one answer and you simply found it. But it means the choice is real. There genuinely is more than one serious way to love a person, there always has been, and you have been making that choice your whole life without once noticing it was a choice.
Next week is the last episode. And next week I stop sending you back into the history, and stop turning you away to chatbots and copies, and bring all of it together — the five theories, the app, the ancient argument, the wedding — and hand it back to you. Not as an answer; I told you in the first hour I would not have one, and I have spent eight episodes earning the right to mean it. I hand it back as the question, finally sharp enough to carry out of here — into your actual life, onto the actual people you love.
Because that is where it was always pointed. Not at Plato. Not at the app. At them.
One question to take with you until next week — and just hold it; do not try to answer it tonight. The person you love most: when you reach for why, which way do you reach? Toward what is good in them? Or toward the bare, particular fact that it is them? You will feel both. Do not resolve it. Just notice yourself doing it — notice which way you lean — because that lean is older than you are, older than the words you would reach for to defend it, and next week we find out what it commits you to.
The copy is still at the door. Next week we look straight at it, and at what each answer would cost you.
Thanks for listening. I'll see you next time.