“You Can’t Do That”
Four words. Sometimes only three.
They arrive in a corridor, or across a kitchen table, or in the middle of a conversation the other person will not remember having. They take about a second and a half to say. And whoever says them usually isn’t being cruel — they are being realistic, helpful, or simply thinking out loud about a life that isn’t theirs. Then they go home and forget it entirely.
You don’t.
Some years ago at a conference, a man I did not recognize came up to me and said, “You probably don’t remember me.” He was right. I didn’t. He had worked at my company years before, several levels below me, and he told me that one afternoon I had stopped him in a hallway and said: “I heard what you said in that meeting this morning. Don’t stop saying things like that.” He had been planning to go quiet, he said. To keep his head down. Instead, he kept speaking up, and speaking up became his career, and now he runs a company of his own.
I have no memory of saying it. None. Twelve words, spoken in passing by a man thinking about something else entirely, carried for twenty years by a man who built part of his life on them.
That is the strange arithmetic of a sentence: it costs almost nothing to say, and it can be carried for decades. And here is the harder half of it, the half I did not want to look at. The arithmetic runs in both directions. For every sentence handed back to me at a conference, there were others — the impatient ones, the dismissive ones, the ones I don’t remember either. Nobody comes up to you at a conference to return those. But they were received. Somewhere, they are still being carried.
The Two Obedient Responses
Broadly, there are two things we do with “you can’t do that,” and which one we choose depends almost entirely on what kind of day we’re having when it arrives.
If it lands on a strong day, we fight it. We take the sentence as a commission. We spend years, sometimes decades, assembling the evidence — the degree, the title, the finished manuscript, the thing we can finally set down on the table and say, there. And it works. The evidence is real. Nobody can take it from us.
If it lands on a thin day — and most of us have more thin days than we admit — we do something quieter. We don’t argue. We agree. Not out loud; agreement of this kind rarely needs words. We simply stop moving in that direction. We don’t apply. We don’t send it. We let the idea get busy, then old. And because we never actually tried, we never actually failed, which is the whole appeal of it. Declining to begin feels so much less like defeat than beginning and falling short. The sentence turns out to be true, and we are the ones who made it true, and we never quite notice we have done it.
Here is the part that took me a long time to see. Those two responses look like opposites. They are not. The person who never tried and the person who spent thirty years proving them wrong are both taking instruction from the same voice. One obeyed it. One defied it. Neither was free of it. A life organized around answering a sentence is still a life that sentence organized. The trophy on the shelf and the empty space on the shelf are addressed to the same person.
A Guess Wearing the Costume of Certainty
Think about what is happening when someone tells you what you are not capable of. They are standing outside a door, reading a label they invented, describing a room they have never once been inside.
That is all a judgment like this can ever be — a guess wearing the costume of certainty. The person offering it may be experienced. They may be older. They may even be describing something accurately: the version of you they have met, on the days they met you. What they cannot be is authoritative, because nobody has entered that room yet. Not them. And, on the day they say it, not you either.
Where the Sentence Lives Now
The difficulty is that after long enough, the sentence is no longer out there in the corridor. We have given it a room in the house.
Sixteen hundred years ago, a group of men and women went out to live alone in the Egyptian desert. We call them the desert fathers and mothers, and although the arrangement sounds eccentric, what they were doing was not. Stripped of distraction, they spent years watching how their own minds actually behaved — which makes them, in a real sense, the first careful students of the interior life.
One of them, a monk named Evagrius, noticed something that anyone who has lain awake at three in the morning will recognize. Certain thoughts don’t simply appear at random. They arrive along a track — the groove worn by every previous arrival of that same thought. The more often a thought has come, the more easily it comes again, and the less it feels like a visitor and the more it feels like a resident.
That is exactly what happens to “you can’t do that.” Somebody else said it once. Now it arrives in our own voice, on schedule, certain of its welcome, wearing clothes we recognize. And because it sounds like us, we stop experiencing it as somebody’s opinion. We experience it as a fact about ourselves. Nobody argues with a fact.
What those desert watchers understood — and it may be the most practical thing that tradition ever handed us — is that the groove is not the self. The thought is not the thinker. You did not choose the first arrival. You were not, at fourteen or twenty-two or whenever it happened, in any position to choose what came next.
But you are here now, with a view you did not always have.
The Third Response
So, what do we do, if fighting and folding are both forms of obedience?
Notice. Pause. Respond.
Notice it arriving — and notice which version has come, the one that makes you shrink or the one that makes you swing. Pause long enough that the groove does not run. Then respond, and not with yes I can, because that is still an argument conducted in someone else’s courtroom, and it still concedes that the matter is theirs to rule on.
Respond instead with something quieter and far more radical: “that was never yours to say”. This is not about the verdict. It is about jurisdiction.
The Square in Assisi
There is a scene from eight hundred years ago that shows this better than anything I could invent, and it needs no religious background at all to land — only the fact that it happened in public, in front of the whole town.
Before he was Saint Francis of Assisi, he was Francesco Bernardone, the son of a prosperous cloth merchant in a hill town in Italy. His father, Pietro, had plans for him. Francis was to inherit the business, marry well, and take his place among the respectable men of the town. That was the sentence written over his life long before anyone said it out loud: you are a merchant’s son, and a merchant is what you will be.
Francis had other ideas, and they looked, to his father, like a young man throwing his life away. He gave the family’s money and goods to the poor. He spent time with lepers — people with a disfiguring illness who were put outside the town walls and treated as untouchable, the last company a rising young merchant should keep. He spent his days repairing a crumbling chapel nobody had cared about in years. To Pietro, none of this was a calling. It was simply his son’s refusal to accept an accurate description of himself.
So, in 1206, Pietro did what a furious father with means could do: he hauled his son before the bishop in the town square to demand his money back — and, though he would not have put it this way, his son back. The bishop was the local church authority, and in a town like Assisi that made him the natural judge of a family dispute that had become a public scandal. A crowd gathered. Everyone knew everyone.
Francis did not argue. He did not defend his choices, produce evidence, or stay to win. He went into the bishop’s house, took off everything he was wearing, came back out, folded the clothes with some care, and laid them at his father’s feet.
It was not a tantrum. It was a withdrawal of jurisdiction. You may keep the description. It no longer applies to me.
And notice what happened next, because this is the part we always forget. He did not stand there exposed for long. The bishop, who was weeping by this point, stepped forward and wrapped him in his own cloak. What Francis set down was his; what he received back was borrowed. Which is, it turns out, the whole economy — we rarely get to see what is waiting to clothe us until we have actually put down what we were wearing.
You do not have to go back eight centuries to find the same movement. Hannah Waddingham, the actress many people know as Rebecca from the Ted Lasso series, spent years of her early career being turned away from parts for one reason: she was too tall. Producers wanted her, then didn’t, because she stood taller than the men already cast. For a long period she found herself rounding her shoulders, making herself smaller in the room. Her advice, looking back, came down to two words: “Don’t slouch.” She did not get every part back. Some doors closed and stayed closed. What changed is that she stopped folding herself down to be chosen by rooms that required her to be less. That is not winning the room. That is refusing to disappear inside it. It may be the only victory actually on offer, and it is enough.
The Sentence in Our Own Mouths
One last thing, and then I will leave you with it. We are not only on the receiving end of this. Somewhere this week, one of us will be the person in the corridor.
We rarely say you can’t outright. We are far too well brought up for that. We say that’s ambitious. We say “Are you sure, at your age?” We say “I just don’t want you to be disappointed” — which may be the most efficient small sentence in the language, because it sounds like love and functions like a lock. And then we go home and forget we said it.
They won’t. Twelve words can hold for twenty years. That is a lot to carry around in your hands all day, and it costs almost nothing to use well.
The Wisdom to Carry
Freedom does not arrive when you finally win the argument. It arrives when the argument ends, because you have stopped recognizing the court. Grace rarely knocks on doors we have already labeled closed — but it has never once been stopped by a door somebody else labeled for us.
Which sentence has been arriving longest in your own voice that began in someone else’s? And what would it cost you, today, to stand at your full height and let the room feel whatever it is going to feel?
Reflection Copyright 2026 by Michael J. Cunningham OFS