Some years ago a friend of mine was deciding whether to go into a venture with a man we both slightly knew — money, a partnership; the particulars do not matter. The night before he committed, he telephoned me and asked one direct question: did I trust the man? Honestly.
I said yes.
I want to be exact about what I did, because I did not, strictly, lie. I had a bad feeling about the man — nothing I could have specified, only an unease when he was in the room — and when my friend asked, I weighed that unease against how little I could point to, against how much he wanted the venture, against my reluctance to be the one who ruined it on a suspicion I could not defend. And I said, "Yes, I trust him," warmly, with no hesitation. My friend was relieved. He said that was what he had needed to hear, and he went ahead.
It went badly — not catastrophically, but badly enough. And here is the part I keep returning to. When it came apart, what I regretted most was not that I had misjudged the man. Anyone can misread a person, and had that been all, I would have forgiven myself long ago. What I regretted was the single sentence — that was what I needed. He had not asked me to forecast my feelings. He had asked so that he could rely on my word in the last hour before committing, and I had given him a word I had not earned; he relied on it, and it failed him.
Notice that this is a different kind of wrong from the two we examined last week. Last week the wrong sat in one of two places: in what a lie does to the truth, and to the liar; or in how the whole episode adds up in harm. But I did not quite lie, and you could argue the harm was simply bad luck. And yet something was still broken that neither of those accounts quite describes. He relied on my word, and my word did not hold.
Last week I introduced the two figures who built the two responses most of us reach for — one who held that a lie is always wrong, even a kind one; and one who held that the kind lie is not merely forgiven but right. I built each until you might have wanted to sign up with both, then set them against each other, and they disagreed about nearly everything — except one assumption. Both took for granted that the whole question was about the sentence: when may I say the untrue thing. As though honesty were simply a matter of whether the words leaving my mouth match the world.
This is Philosophy for Us — philosophy for everyone, no degree required. This is the third of eight episodes on the most ordinary difficult thing there is: telling the truth, or not, to the people close to us.
Tonight I bring in philosophers who think both of them located the wrong in the wrong place. They hold that a lie is wrong neither because of what it does to the truth nor because of how it adds up, but because of what it does to the trust between two people — the word that someone relied on. And then, near the end, we reach the thing the rest of this series turns on: that you can keep every word you say true and still deceive someone completely. "I never actually lied" is one of the most interesting sentences a person can say — and not always to their credit. We are taking the long way round to the wrong of a lie. By the end you may not be sure it lies in the lie at all.
Here is the idea, and it is simple enough that it is easy to pass over, so I want to go slowly. When I tell you something — not ask you, not think aloud, but tell you plainly, "the meeting is at three," "he is trustworthy," "she did the right thing" — I am not merely placing a fact near you and leaving you to do as you like with it. I am doing something to you, or rather with you. I am inviting you to take my word for it. I am saying: you need not go and check, you need not find out for yourself, you may rest your belief on me.
A small group of philosophers hold that this one act — the invitation to trust — is the key to what a lie is. The clearest version comes from Edward Hinchman, in a 2005 essay whose title states the thesis outright: "Telling as Inviting to Trust." Before him, the philosopher Angus Ross, in a 1986 paper called "Why Do We Believe What We Are Told?", asked a question that sounds almost childish until you dwell on it. Consider how strange it is: someone you have met twice says "the bridge is out ahead," and you turn the car around. You did not see the bridge. You have no evidence. You simply took their word. Ross's answer is that telling someone something is not like leaving a clue for them to evaluate. It is more like handing them a guarantee to rely on. When I assert something, I give you my word — and that phrase, "I give you my word," is not decoration. It describes the structure of the act. I am offering a guarantee, backed by me, and inviting you to rely on it.
And if that is what telling is, consider what a lie becomes. A lie is not, on this view, chiefly a corrupted relation to the truth — that was Kant, last week: speech turned against its own purpose, the wrong done to the rational nature in one's own person. Nor is it chiefly a bad outcome — that was the consequentialist, the harm it causes. On this account a lie is a betrayal of the particular person who took your word. You invited them to trust you — that is what saying it was — and then you used the invitation to place something false inside them. You did not merely get a fact wrong near them. You solicited their trust and, in the same act, used it to deceive them. They relied on your word because you had asked them to, and you had already decided the word would not hold.
Notice that this is a genuinely third account, and not one of the other two in disguise. Take the cleanest possible case — a lie that harms no one and corrupts no one. Suppose I tell you I have read a book I have not read, merely to seem well-read at a dinner. Nothing follows from it. You never find out; no decision rests on it; my character is, let us say, no worse than it was that morning. The consequentialist looks at this and shrugs: no harm, no victim. And even the Kantian has to work to make a small vanity of this kind feel like a crime against humanity. But the trust account identifies the wrong at once. You asked me sincerely, and you believed me, because believing what people tell us is what we ordinarily do — and I reached into that readiness to take my word and used it. The wrong is precisely there, in the using, whether or not anyone is harmed and whether or not my character suffers. Something passed between us that I abused. The trust was the thing, and I spent it.
Now turn the account onto the case that matters to us — not the dinner-party vanity, but the kind lie. My sister, in the kitchen, asks whether she was right to leave him, and I tell her the comforting thing. Last week the consequentialist gave me a clear conscience about that: no one is harmed, she is comforted, the truth would only have cost her an unhappy hour. That is a serious argument, and I have not taken it away from you. But listen to what the trust account says beneath it. When she asked me, she was not running a calculation on my answer. She was relying on me. She came to me, of all people, and rested her weight on my word because it was mine — because I am the brother who tells her the real thing. And the kind lie, however gentle, spends exactly that. It spends the particular trust that made her ask me rather than a stranger. The comfort is real. But it is comfort bought at the cost of her trust in my word, and she does not know that is the cost, because only I can see what the answer really was. On this view you cannot comfort someone with a falsehood at no cost, because the trust you are spending is hers, and you are spending it without telling her.
So that is the third account, built. Not "the lie wrongs the truth." Not "the lie adds up badly." The lie betrays the person who took your word — and it can do so even when the truth would have changed nothing and the lie harms no one, because what it spends is the trust itself. Now, you may already feel a pressure on this account, a weak point — what if I never gave my word? What if I never asserted anything false at all? Keep that question in view; it is where we end tonight. First I owe you a fourth figure, because the trust account is not the only one that thinks both of last week's positions stood in the wrong place.
Before the fourth account, let me set out a near neighbour of the trust account, because the two are close and easily confused, and they are not the same.
The trust account is about telling — about what I do when I give you my word and you take it. But some philosophers — the pair to remember is Rima Basu and Mark Schroeder — point to something stranger: that you can wrong someone not by what you say to them but by what you privately believe about them. Suppose you have never once been anything but reliable to me, and I find myself assuming that you will let me down — not on any evidence, but on an unexamined hunch. I never say it. I may be perfectly courteous. Yet there is a case to be made that I have already wronged you, in the believing, before a word is spoken — that beliefs are not merely private states, that they are a way of relating to a person, and that one can relate to a person wrongly in the privacy of one's own mind. That idea, which is called doxastic wronging, is a real and live one, and I raise it deliberately so that you do not fold it into the account in the last segment, because it is a different claim. The trust account says the wrong lies in abusing the word you gave. This one says the wrong can be present with no word at all, in how you hold the person in your mind. Keep them separate. We will want the second one much later. Tonight it is only a neighbour, mentioned in passing.
Now the fourth account, which refuses both of last week's positions at once. Its clearest builder is T. M. Scanlon, in his 1998 book whose title is nearly the whole of it: What We Owe to Each Other. Scanlon's test for whether an act is wrong is neither a rule nor an outcome. It is this: an act is wrong if it is forbidden by a principle that no one could reasonably reject — a principle for how we treat one another that you could justify to every person it affects, to their face, and that none of them could reasonably turn down. That is the whole mechanism. Not "never lie, whatever happens" — that was the rigorist, who marched us to the murderer at the door. Not "add up the pain and the comfort" — that was the consequentialist, whose sums anyone can tilt in their own favour. Scanlon's question is different from both: could you justify this deception to the person you are deceiving — state the actual principle you are acting on — and would they have no reasonable grounds to refuse it?
Watch what that does, because it is subtle, and it cuts both ways. Take the kind lie to my grieving sister. It may — perhaps — pass. Here is the principle stated to her face, not as a remark about tonight but as a standing rule between us: when one of us is at the lowest point, already past the decision, and the hard truth can do nothing but hurt, the other may withhold it. Could she reasonably reject that principle? Perhaps not. And note that the test is not whether she would happen to agree in the moment — people agree to terrible things and refuse good ones; the question is whether the principle is one she could reasonably decline. Perhaps she could not. If so, Scanlon says the kind lie is not a corruption of anything; it is justified — not because it adds up well but because it runs on a principle no one in the room could reasonably refuse. Now take the lie I told my friend on the telephone — yes, I trust him — and try to state its principle to his face: when you ask me a direct question just before you commit, and the honest answer is a thin, uneasy suspicion, I may give you false certainty so that I need not be the one who spoiled it. He could reject that flatly, and reasonably; there is no version of that principle anyone could be expected to live under. So contractualism identifies the difference between my two cases exactly — and note that it is not a difference of outcome, and not a flat rule about false sentences. It is a difference in whether the principle you are acting on is one the other person could reasonably refuse.
That is a third account again, and genuinely distinct from the trust account. The trust account locates the wrong in the betrayed relationship. Scanlon locates it in justifiability — in whether you could stand behind the rule you are in fact following. And here I must be honest with you about a weak point in it, not to knock it down but because it will matter later in the series. Everything in Scanlon's test depends on which principle you are really acting on, and reasonable to whom. When I tell the kind lie, am I acting on the clean principle — she is past the decision, spare her — or on a shabbier one I have dressed up to resemble the clean one? Scanlon's test is only as honest as your own account of what you are doing. I will not chase that tonight; it opens a question we are not ready for, and it stays closed for two more episodes. Simply mark that the test has a place in it where your story about your own reasons does the decisive work. We will come back and look hard at that point.
Three accounts now, all refusing last week's two positions, none of them about the bare match between your sentence and the world. And every one of them — Kant, the consequentialist, the trust account, Scanlon — assumes that the thing in question is a false statement. I have been letting you assume it too. It is time to stop.
Here is a sentence: "I have been at my desk all day." Suppose your manager asks whether you finished the report, and you say exactly that — "I have been at my desk all day" — and it is true, every word of it; you really were at your desk. You also did not finish the report; you did almost nothing on it. And you say the true sentence precisely so that your manager will conclude that you did. You did not lie. Put you under oath and you are clean. There is no false statement to point to. And you deceived them deliberately, completely, and you know it.
This is the strange region honesty borders, and the philosopher Jennifer Saul has done the most careful work on it, in her 2012 book Lying, Misleading, and What Is Said. The first thing to grasp is how much of ordinary life takes place in this region. You need not say anything false to plant a false belief. You need only say something true that you know the other person will interpret in a particular way, and let them interpret it. A reference letter for a poor employee that praises, warmly and truthfully, only their punctuality. A partner asking "is there someone else?" and receiving "you know you are the only one I have ever wanted to marry" — perhaps true, and not an answer to the question. The estate agent who says "you will not find a quieter street" — true, because the motorway noise comes off the street behind. None of these is a lie. Every one is a deception. The words remain perfectly true, and the person is misled anyway: they rely on a sentence that holds, and are deceived by the impression it was built to create.
Now here is why this matters to us — the people who would like to think of ourselves as honest. The misleading truth is the preferred instrument of exactly the person who would never tell a flat lie. It is the honest person's lie. The one who could not bring himself to say the false thing — who would feel the Kantian wrong, who would feel the trust break — discovers that he can produce the very same result, the false belief safely installed in another's head, while keeping his own hands technically clean. "I never lied to you." And it is true. That is what makes it one of the most interesting sentences a person can say. Sometimes it is a genuine defence. And sometimes it is the most damning thing in the room, because it means the speaker wanted the deception badly enough to engineer it, and also wanted to keep the proof that he did not do it.
Let me hand this one to you, because you have one of these. Everyone does. Find it — a real occasion on which you told the literal truth and let it deceive. Not a flat lie; you would remember a flat lie. The more slippery kind. The "well, I did not actually say that" you have kept in reserve. The true sentence you reached for because of what the other person would take from it — the technically accurate answer to a question that was not quite the question they asked. The thing you said to your mother that was true and left her believing something kinder than the truth. Find one.
Now hold it beside a flat lie you might have told in the same situation instead, and ask the question I cannot let you avoid tonight: was the true-but-misleading version actually better? Part of you wants to say yes, obviously — at least I did not lie. But part of you knows that something shifted in the choosing that does not look so clean. You went out of your way to get the false belief into them and to keep your own record unbroken. You wanted both. And I do not know, standing here, whether that is better than the honest liar who at least committed to the falsehood and put his name to it — or worse, because it adds a second step, the step in which you protect yourself. Saul's own view is that there is usually no moral difference in the act itself — misleading and lying come out about level — though she allows that a person who prefers to mislead may have a better character, may care more about not crossing into the outright false. Other philosophers argue the opposite: that misleading is worse, precisely because it preserves deniability, because it is what you do when you want the result and the alibi together. I am not going to settle it. I am putting both views in your hands with your own real memory between them, and you will find it does not come out clean either way.
And do you see what has just happened to the ground under the whole evening? For three accounts we located the wrong of a lie — in the truth, in the outcome, in the trust, in the principle you could justify. Every one of them was an account of the false statement. And you have just caught yourself doing the wrong with no false statement anywhere in it.
So let us do the honest thing and run the misleading truth back past all four of tonight's accounts, and watch them come apart — because they do not agree about it, and the way they disagree is the most useful thing you will take away tonight.
Start with the consequentialist, last week's. They barely look up. For them the only thing that ever mattered was the false belief and its effects — so a true sentence that installs a false belief is exactly as good or bad as a lie that installs it. Same belief, same harm, same verdict. Lying and misleading are one thing to them; the difference is a fuss about words. That is clean — almost too clean, because most of us do feel a difference between the liar and the misleader, and a theory that can see no difference at all has gone slightly blind to something real.
Now Kant, who has a genuine problem here, one his critics have always pressed. Kant's wrong was the wrong of the false assertion — turning speech against its own purpose. But the estate agent said nothing false. He did not turn speech against the truth; every word he said was true. So on the strict letter of the rule, the misleader keeps clear of the one thing Kant forbade. That is either a point in Kant's favour — the rule has a clear line, and the misleader did not cross it — or the undoing of the rule: are we to say that the man who engineered a false belief with careful true sentences did nothing wrong, while the man who blurted out a falsehood did? The misleading truth is the case in which Kant's clear line begins to look less like a principle and more like a loophole.
Now the trust account — and here watch, because this one holds. Did the estate agent invite you to trust him? Of course he did. "You will not find a quieter street" is not a weather report; it is an assurance, offered to be relied on. He gave you his word and built it, deliberately, to carry a weight he knew it could not honestly bear. The trust account does not care whether the sentence was technically true. It cares whether you invited someone to rely on you and then betrayed the reliance. By that measure the misleader is caught squarely — perhaps caught worse than the liar, because he took the trouble to set the trap and keep the alibi. The clear line that acquitted him under Kant does nothing for him here.
And Scanlon, likewise. Try to state the misleader's principle to the buyer's face: when a true sentence will mislead you into buying, and a false one would be a lie I am unwilling to tell, I may use the true one. No one could reasonably accept that. It fails the test for the same reason the lie did — there is no principle behind it that the buyer could not reasonably refuse — and it fails whether or not any false word was spoken.
So consider what we have. Four serious accounts of the wrong of a lie, and on the plainest case of deception without a lie they divide down the middle. Two of them — Kant, and the clear-line instinct beneath him — fall silent, because their whole apparatus was built around the false sentence, and here there is none. And two of them — the trust account and Scanlon — convict the misleader without hesitation, because they were never really about the sentence in the first place. They were about something underneath it: the relationship, the justification, the reliance. This means the misleading truth is not merely a clever edge case. It separates honesty from the words, and asks where honesty actually resides.
And it opens a question I want to place directly before you and then leave there until next week, because the rest of these episodes turns on it. We began tonight with the liar. Then the misleader, who deceives with true words. But there is a third figure standing just beyond him, quieter than either: the person who deceives by saying nothing false and, indeed, not much at all — who shapes what they tell you, softens it, leaves out the worst of it, hands you the gentler nine-tenths and lets you assemble the wrong picture from it. The one who would tell you, warmly, that they were merely being tactful. Is that the same thing the estate agent did — a clean deception dressed as kindness? Or is it something genuinely different, something honesty has no quarrel with at all? Carry that one out unanswered. It is the whole of next week.
Let me name what you are leaving with, because it is stranger than what you arrived with, and I have settled nothing.
You came in tonight — and last week, and the week before — holding a picture so obvious that you never examined it: that honesty is about the sentence. That an honest person is one whose statements match the world, and the only hard question is when you may let them come apart, and how gently to do it. Both of last week's figures stood on that picture. They fought to the end over when you may say the false thing, and neither of them ever turned to inspect the assumption they both stood on.
Tonight we put four accounts of the wrong of a lie in the room — what it does to the truth, how it adds up, the trust it spends, the principle it cannot justify — and I am not going to tell you which is right, tonight or ever. They are all still standing. The harm the consequentialist counts is real; the line Kant draws is real; the trust account and Scanlon caught things the other two were blind to; and every one of them, once you examine it closely, has a point at which it fails. What I will tell you is what the evening did to the assumption they all shared. Three of those four accounts — and the picture you carried in — quietly took it that the thing in question was a false sentence. Then came the misleading truth: every word of it true, a false belief planted cleanly, the man who can say, honestly, I never lied. The trust account and Scanlon could still see a wrong in him, because they were never only about the sentence — but note that this does not hand them the victory either; it only shows that the wrong of deceiving someone can sit somewhere other than in the false words. And if it can sit there, then the loud question you walked in with — when may I say the false thing — was never the whole of honesty. If honesty were only about the sentence, the misleader would be in the clear. And you do not think he is.
What you take away, then, is not an answer; it is a better-shaped question. No longer "when may I say the false thing." That one has been demoted. The real question, the one beneath it, is: where does honesty actually reside, if you can break it while keeping every sentence true, and perhaps keep it while saying nothing true at all? I do not have that answer for you tonight. I am not certain I will have it by the end. But you can feel now that it is the real question, and you could not feel that three weeks ago.
Next week we go straight at the figure I left standing in the doorway just now — the one who deceives by shaping, by sparing you the worst of it, and calls it tact. There is a philosopher, Christian Miller, who will make a surprising claim about that person: that the brutally honest friend who wounds you is not too honest at all — that honesty does not even have a vice of excess — and that what the teller-of-all lacks is a different virtue altogether, one called tact, and that you can have both at once. If he is right, the dial you have been agonising over — truth on one side, kindness on the other — may be a category mistake. And there is an older voice, going back to Aristotle, that says: not so fast, there is such a thing as being too truthful. I will build both. We will see whether the dial survives.
Tonight, take away the opening you have made. For three weeks you have been asking how much truth you owe. Tonight you have found that you are not even sure what truth-telling is — whether it is in the words at all. That is not a step backwards. It is the discovery that the question you took to be the deepest one rests on a deeper one still.
Thanks for listening. I'll see you next time.