I. The Debate

April 6, 1922. Paris. The French Society of Philosophy.

Two ways of understanding time meet here.

Einstein was forty-three, already famous worldwide for relativity. His Nobel Prize for 1921 would be announced later in 1922, especially recognizing the photoelectric law. He had not just arrived at this April meeting with a prize for relativity.

Bergson was sixty-two, a philosopher whose books and lectures had drawn large audiences. His New York lectures in 1913 attracted particular attention. The tale that he caused Broadway’s first traffic jam is more memorable than securely established.

The subject of the debate was time.

Bergson’s intervention asks whether physics’s treatment of time exhausts the questions raised by experiencing it. Duration, durée, names a lived continuity whose moments interpenetrate rather than sit apart like beads. The meeting’s record matters more than an imagined, precisely timed thirty-minute speech.

Einstein’s reply distinguishes psychological time from physical time.

The sentence repeatedly quoted afterward belongs inside that distinction.

In the record he denies a separate “time of the philosophers,” while acknowledging a distinction between psychological and physical time.

“The time of the philosophers does not exist.” It is a sharp sentence, but it cannot be rewritten as “subjective experience does not exist.”

Their disagreement is not merely about whether clocks and feelings can coexist. Bergson also interprets simultaneity and actual or possible times in relativity, and those interpretations face real technical objections. Making room for experience cannot begin by declaring him necessarily right about physics.

Later retellings like the verdict: science won, philosophy lost.

The verdict is much simpler than the questions either man raised.

Bergson’s later standing changed amid intellectual fashions, politics and institutions. The 1927 Nobel Prize in Literature was no formal scientific demotion. One objection did not make him disappear, nor does renewed interest make every argument of his correct.

But.

How a person lives through time remains worth asking. Recognizing that does not require defeating relativity first.

II. Duration

First, go back to the young Bergson.

He entered the École normale supérieure in 1878, in the same cohort as Jean Jaurès. He had strong mathematical training and published a geometrical solution. That matters: his question about what calculation treats as time did not arise simply from an inability to calculate.

After graduating he taught philosophy at Angers and Clermont-Ferrand. His thinking about duration took shape during these working years.

A blackboard can bring the question into view. What follows is not a transcript of one documented lesson.

An object moves from A to B. How does its position vary with time? What is its velocity at a particular moment?

This is a standard problem in calculus. Derivatives. Instantaneous velocity. Bergson had been rigorously trained in mathematics; he knew how to compute it.

But that day he stopped.

He looked at what he had written on the blackboard. He suddenly realized something —

A derivative expresses an instantaneous rate of change. It does not require the universe to contain a smallest grain of time, nor first locate an indivisible interval to divide by. A continuous model allows intervals to be subdivided.

Can it?

Being able to calculate and divide a representation of time does not already describe everything about living through an interval. That is the step Bergson challenges, not a flaw calculus does not contain.

Then what is time itself like?

Let us imagine a pause before the blackboard. The pause belongs to the scene, not to a revelation certified by a notebook.

Drawing time as a line is enormously useful. But treating points as units external to one another can let something in experience slip out of the drawing.

But the time he himself experienced was not like that.

The time he himself experienced was a flow. The present moment he was experiencing contained everything he had just experienced — not as a separate segment, but as part of this present — and contained also his anticipation of what was coming next, also as part of this present. This flow was not a line. There were no separable segments inside this flow. There was no direction in this flow that could be reversed: what he had experienced could not be uncrossed; what he had not yet experienced could not be experienced in advance.

He called this flow duration. Durée.

The French word means simply "lasting" or "continuing"; there is nothing mystical about it. Bergson used it to refer to that lived time inside consciousness — the time that is not segmented, not spatialized, not measurable by clocks — the time that can only be experienced from inside itself.

This question was more than a brilliant classroom exclamation. Later books argued, revised and developed it.

His doctoral thesis (published 1889, Time and Free Will in English) was devoted to it. All his major later works — Matter and Memory (1896), Creative Evolution (1907), The Two Sources of Morality and Religion (1932) — built on the same initial intuition.

For Bergson, duration is not merely a feeling of speed added to clock readings. It asks how experience itself continues.

Physics uses operational relations to compare times, including relations among clocks; relativity is not simply one great external clock shared by everybody. That indispensable work is not the same as a first-person account of waiting.

Duration is experienced from inside. You need no instrument. Your consciousness itself is duration. When you remember laughing yesterday, that laughter is not a vanished past — that laughter is still in your present. When you anticipate someone you will see tomorrow, that person is not a non-existent future — that anticipation is already in your present. The present of duration has thickness.

A present represented as a coordinate point has no length. That property of a representation does not establish that physics cannot study memory or neural activity.

The present of duration has thickness. Your present contains your past and your future.

The descriptions do not simply replace one another. Whether they require two independently existing entities is a further philosophical question, not something a metaphor has already proved.

The dispute of 1922 came after decades of this work. Einstein was not denying that people wait, remember or experience length. He challenged how those experiences enter an argument about physical time.

That challenge deserves an answer, not dismissal as an inability to understand experience.

Conversely, the rigor of a physical time concept does not make waiting and remembering undeserving of their own description.

I want to retain not an antiscientific victory, but a question that need not immediately end with one account swallowing the other.

III. Laughter

Let us leave the question of time for a moment, and look at another side of Bergson.

In 1900 he published Laughter: An Essay on the Meaning of the Comic. That year he also joined the Collège de France. This small book by a philosopher of time concerns comedy.

Comedy. Bergson.

The combination is at first slightly odd: a philosopher who speaks of the deep time-structure of consciousness writes a book about laughter. But once you read it, you see the two are two faces of one thing.

Bergson asks: what makes us laugh?

He primarily studies the comic, not every laugh arising from joy, nervousness or intimacy. He offers a penetrating line of thought—

The mechanical encrusted upon the living.

The book considers a person stumbling while walking: inertia carries the body onward without adequate adjustment to the situation. A banana peel is a familiar adaptation, not a necessary prop from the original. Laughter catches a living movement suddenly resembling a malfunctioning mechanism.

Laughter is the response to this falling of life into machinery.

Bergson uses this principle to analyze nearly every type of comedy. The recurring catchphrase is the mechanical encrusted upon language. The single-trait character (Molière's miser) is the mechanical encrusted upon personality. The mistaken identity (mixed-up twins) is the mechanical encrusted upon identity. Mimicry, especially of someone's small mannerisms, is the reduction of a person to a repeatable mechanical pattern.

The approach illuminates much comedy and remains open to criticism and extension. It is not a register at which every instance of laughter must report.

I want to read it beside duration, without turning two books into one formula.

Duration reminds us that what has been lived enters the next moment. Even the same movement can carry a different past. A life is not merely a chain of externally repeatable motions.

The doctrine of laughter says: when something that should be flowing — a person's behavior, a person's language, a person's reaction — becomes unflowing, becomes predictable, repeatable, describable in mechanical terms — our consciousness immediately registers this, and answers with laughter.

As a metaphor, laughter can remind life not to grow rigid. Calling it duration’s immune system would be our phrase, not his proposition.

A reminder can also become correction or punishment. Bergson notices laughter’s social role in pulling the out-of-step person back into line. Freedom is not necessarily the winner.

There is also something deeper that Bergson noted in this book. Comedy, he said, requires that the audience set aside its sympathy for a moment. If you see the slipping man and instantly think he might be hurt, you will not laugh. You will be worried. The comic effect arises only because, in that second, you treated him as an observable mechanical apparatus, not as a conscious being like yourself.

Laughter is neither automatically malicious nor automatically kind. Temporarily suspending sympathy can reveal rigidity, or make us miss someone’s pain.

The analysis leaves an uncomfortable question: when we laugh, has the particular person temporarily slipped from view? It need not become the claim that every laugh denies personhood.

That question meets this movement’s concern with the other. It does not make Einstein’s theoretical objection a denial of Bergson’s humanity. Argument, laughter and violence occupy different registers; one label should not cover them all.

Bergson continued to formulate his question; we can continue to challenge his answers. Taking a thinker seriously is not guaranteeing immunity from refutation.

He held his position.

IV. Two Times

Let us return to time.

The victory story of science defeating philosophy can narrow the original question. We need not win a match for Bergson to consider a familiar experience: the clock records a long interval, but in recollection there seems to be no middle.

An accessible example, easily pushed too far, is recollection after general anesthesia.

Anesthesia.

Imagine an operation: medication, the scene fading, then waking in recovery. This is how some people remember it, not a uniform report of every anesthetic.

Three hours have passed.

The clock records three hours. Equipment operates, the body undergoes treatment, cells remain active. Someone waiting outside may find each minute long. One interval receives descriptions from different positions.

In your recollection, those three hours may form no narratable sequence.

Less like a fast film than one scene joined directly to another.

That is already a first-person report worth hearing carefully.

It is not independent proof that consciousness was wholly absent. Anesthesia affects both consciousness and memory; missing postoperative recollection does not by itself establish the absence of every experience throughout the interval. Nor does the brain simply stop working as a whole.

So “Where did my three hours go?” can be a powerful question without secretly becoming an already established answer.

We can ask how experience is interrupted, how memory is retained, and why a person narrates an interval as a blank.

Physicalism does not require people to experience every interval that passes physically. Experience dependent on particular brain activity can alter or cease when that activity changes, without contradicting the continued movement of clocks.

This example alone therefore does not refute physicalism.

Nor does its availability to neuroscience make “for me there was no middle” meaningless.

The external record tells us how long elapsed; recollection tells us how the interval can now be retrieved. They answer different questions.

The difference matters; the conclusion needs restraint.

This is not a modern experimental proof of Bergson’s metaphysics.

It helps explain why replacing experience directly with graduations on a scale did not satisfy him. Understanding the weight of a question differs from proving all its author’s answers.

Anesthesia certainly existed in 1922; the example was not unavailable to Einstein. Nor should we invent his response and then declare victory over it.

Make the question a little smaller—

How did this interval become my experience, or fail to become experience I can recall?

There are questions of mechanism and questions of description. The inquiries can correct each other without first declaring the other nonexistent.

You can describe a gap on waking; a clinician can explain medication and memory. The explanation does not make you live those three hours again, and your account does not thereby become a counterexample to neuroscience.

A clock cannot alone tell the whole of a life; a first-person report cannot alone tell the whole of a body.

Put both on the table before declaring either the owner of the whole.

That is one caution we can carry from reading duration into everyday life.

V. The Two Sources

In 1932 Bergson published his last major work.

The Two Sources of Morality and Religion.

It had developed over years. Rheumatic illness severely restricted his later life; work no longer came with the physical ease of youth. We need not invent one dictation procedure behind every page.

The book is about morality and religion. But its central argument is continuous with what he had been saying his whole life about time.

He says there are two kinds of morality, and two kinds of religion.

Closed morality maintains shared life through habit, obligation and social pressure. Its center of gravity lies within “us,” with war especially exposing its boundaries. That does not mean every actual closed society shows outsiders absolutely no kindness.

Open morality reaches beyond the established group through appeal and inspiration. Socrates, Christ and saints enter his discussion; he also discusses Buddhism without treating all traditions as equivalent. An individual’s action can draw others toward wider human concern, rather than merely secure obedience to the group.

This is not simply enlarging a small circle. The change openness requires cannot be completed merely by increasing membership.

It shares concerns with duration, without being the same concept renamed.

Rigid divisions can serve as an analogy. They do not make physical time morally closed, or clock users guilty of excluding strangers.

Nor is an experience good merely because it flows or feels new. Openness concerns whom care reaches; indivisibility and creativity cannot perform the ethical judgment for us.

Bergson's account of two religions follows the same structure.

Static religion responds to fear, death and the needs of social cohesion through practices, beliefs and what he calls the fabulatory function. It has a role and a limit.

Dynamic religion involves the creative impetus of mysticism opening outward in action toward humanity. He particularly values Christian mysticism; other traditions receive differing evaluations. We can reject that ranking while recognizing his distinction between maintaining an established pattern and opening a new path.

Actual religions can mix both tendencies; the categories are not fixed colors in a directory of denominations.

When this book was published in 1932, Europe was sliding rapidly toward the closed side. German nationalism was rising. Antisemitic movements were intensifying. The distinction between "us" and "them" was hardening in every country. Bergson saw this trend. The book was not abstract philosophy. It was a warning to its time.

Closed morality does not open of itself. Static religion does not turn dynamic of itself. For closure to open, someone has to pay a cost.

He was past seventy and increasingly limited physically. Europe’s dangers were visible, but he did not foresee every step that followed.

His later response to persecution can be read beside the book. It was not an experiment proving his entire philosophy.

VI. Registration

June 1940. German troops entered Paris.

The order requiring registration of Jews in the occupied zone was German, dated September 27, 1940. Vichy’s first Jewish Statute followed in October. Later legislation in 1941 cannot explain an action taken before Bergson’s death.

Bergson was old and ill, a member of the Académie française and a Nobel laureate. Titles did not remove him from antisemitism’s reach. Accounts of exceptional treatment or exemption vary. A particular letter offering “honorary non-Jew” status must not be treated as a recovered document.

The clearer direction is that he did not separate himself from persecuted Jews.

His name belongs to the story of registration in 1940. How he appeared, what he wore, who pushed a wheelchair, or how many hours he waited require more evidence than a moving version of the story.

Removing those details makes the scene less cinematic. Respecting someone does not require arranging exactly the weather that will bring us to tears.

There is another document on which to rest the thought more firmly.

In his 1937 will he explained why he had not formally converted to Catholicism: despite his growing intellectual proximity to it, he wished to remain among those facing persecution. The publication and wording of the testament have a complicated history too. The choice is nevertheless better grounded than an unverified scene of queuing in the snow.

We cannot edit registration, cold, pneumonia and death into an established causal chain.

Bergson died on January 4, 1941, aged eighty-one. A contemporary tribute mentions pulmonary illness; it does not establish the story of a January queue followed by death three days later.

He died in occupied Paris. Paul Valéry left a tribute. The weight of the time does not depend on one more unverified detail.

Why not draw himself apart?

He did not leave us wholly without an explanation. The will places his religious inclination and solidarity with the persecuted inside one decision. We need not invent a treatise deducing registration from duration.

From here, open morality becomes a close and practical question.

I can have my beliefs and move toward ideas different from those I began with. But when others are excluded for their ancestry, will I let my reputation become a door protecting only me?

Using distinction and achievement to decide who merits rescue offers a tempting logic of exception within persecution.

Refusing that logic can be a personal choice.

It cannot become a demand that every persecuted person forgo a possible means of survival.

Surviving through an exemption does not automatically endorse persecution. Survivors should not face another trial for failing to act out our heroic script.

His choice matters not because it issues an order for everybody else.

It matters because, where conviction met circumstance, he did not wish to detach himself from those people.

That can illuminate open morality without proving every judgment he made.

Without pajamas, an overcoat or hours of cold, the choice still has weight.

It brings an abstract word into a relation between people.

Duration and ethics are not identical. Yet when a person’s past and commitments meet the people before him, a present can matter as more than a point on a clock.

That present deserves remembering without a legendary cause of death certifying it.

VII. He Was Not the Loser

Keeping only “Bergson lost in 1922” misses his continuing question. Saying instead that his later life proved Einstein wrong replaces one simplification with another.

We have written one essay on him. We have not written him as a "wronged genius." We have not written him as "a prophet misunderstood by his time."

We look at what he did, and mark what cannot be established.

He developed duration across a life’s thought. His interpretation of relativity can be criticized; his solidarity amid persecution can be remembered. These judgments need not cancel each other on one scorecard.

That is enough.

He need not win before his work and this particular choice can matter. We can recognize both without certifying a life entirely free of failure.

Aquinas left immense writings and the interruption expressed in straw. Bergson left a philosophy of duration and a decision not to detach himself from the persecuted.

Two different acts, placed by us beside the question of not taking oneself for the whole.

Aquinas’s theology must not be rewritten as Bergson’s ethics; Bergson’s ethics must not defend his interpretation of physics on its behalf.

Neither is a finished model. We receive questions from them while retaining responsibility to judge.

Clocks can continue to run accurately while a person must still ask how to live this moment. No measurement alone assumes that responsibility for him.

The time he lived through need not first win a debate to deserve understanding.

VIII. The Bridge

There is one more figure on the bridge tonight.

Hypatia stands in the middle of the bridge, the astrolabe in her hand. Aquinas stands beside her, his hands empty. Bergson walks up.

He is not tall. He wears a dark suit, and metal-rimmed spectacles. His beard is neatly trimmed. His hands cannot move very well — the arthritis makes every motion slow. He uses a cane.

He walks even more slowly than Aquinas.

He sees Hypatia and Aquinas. We do not invent a reading list passed down to him through her, or make him announce an identical doctrine with Aquinas. Tonight brings together three people with different work and different limits.

He reaches the middle of the bridge.

He stops. He nods slightly to Hypatia. He nods slightly to Aquinas. They nod back to him.

He does not immediately find a place to stand. He stands first and looks for a moment at the bridge.

Socrates sits in the distance and Plato crouches over a drawing. Others write equations, watch corn, read poetry, consult star charts, write novels. Some he has read; others are strangers only this bridge lets him meet.

He sees Einstein.

Einstein is at another section of the bridge, drawing a spacetime diagram — a four-dimensional coordinate system, light cones. He is absorbed in the work. He does not look at Bergson.

Bergson watches him work for a moment.

Then Bergson does something.

He does not walk over. He does not say anything. He only, from where he is standing, nods slightly in Einstein's direction.

The gesture is slight. We let the nearby figures notice it while Einstein remains intent on his drawing.

In this imagining it is an attempt at reconciliation.

Not “I won,” not “you were wrong.” More like: your work has rigorous demands, and my question remains worth asking. Our answers may conflict without canceling each other’s place to keep speaking.

Hypatia sees the gesture. She tilts the astrolabe slightly so that the moonlight falls more precisely across the markings.

Aquinas sees it too. He says something in Latin; Bergson smiles and tries a reply. Our imagined bridge need not manufacture distance by making Bergson understand only half the Latin.

More than six centuries lie between them. A neighboring question has not made them the same person.

At the far end of the bridge, the figure who has always been looking into the distance has, in this round, twice looked at someone — at Hypatia, and at Aquinas.

This time, he is looking at Bergson.

Bergson lowers his head slightly. It may be thanks or acknowledgment; gratitude need not imply inferiority. In this scene it seems to say: I see you.

The figure at the far end nods, lightly, in return.

For the third time in this movement, that distant gaze rests on a particular person. This time it is answered.

Bergson keeps walking, slowly, toward the middle. He reaches Hypatia and stops.

The astrolabe’s markings catch a cold light as the moon moves. Measurable relations remain, and each person lives through the evening. Moonlight does not finish the proof of any metaphysics.

Bergson holds no instrument.

But he has his present: the question he worked through in youth, the unfinished dispute of 1922, the choice made amid antisemitism, and this second on the bridge. The past is not a scatter of labels. It is changing how he stands here.

He stands.

His present is thick.^[1][2][3]

Han Qin (秦汉) · @hqinjarsy · Great Lives