Ich und Du — The Grammar of Relation
Ich und Du
The grammar of relation · Martin Buber, 1923
“All actual life is encounter.” Alles wirkliche Leben ist Begegnung
The book

A short, strange, necessary book

Ich und Du is barely a hundred pages long. It has no chapters in the conventional sense — just three unnumbered parts that read more like prose poetry than philosophy. There are no footnotes, no citations, no arguments laid out in numbered steps. Martin Buber published it in 1923, and it has not stopped unsettling readers since.

The book makes one claim and follows it everywhere it leads: that the way we address the world determines what kind of world we inhabit. Not what we know about reality, but how we stand toward it — whether we face things and people as objects to be examined, or as presences to be met. Buber argues that this distinction is not a preference or a mood. It is the most fundamental division in human experience, and it runs through everything: love, language, art, education, politics, and our relationship to God.

Why he wrote it

Vienna, 1923. A world that had stopped meeting.

Buber was a Jewish philosopher and theologian living in the aftermath of the First World War. Europe had just industrialised the killing of ten million people. The Enlightenment promise — that reason, science, and progress would make human beings more humane — lay in ruins. The prevailing philosophies of the time treated people as objects of study: psychoanalysis reduced the self to drives, behaviourism reduced it to responses, and the rising bureaucratic state reduced it to a number on a form.

Buber saw a common thread in all of it: a civilisation that had become extraordinarily good at knowing about things and catastrophically bad at being present with them. The tools of analysis — classification, measurement, abstraction — had swallowed the whole of life. People had become objects to each other. Not because anyone intended cruelty, but because the only mode of relating that the modern world took seriously was the mode of examination and use.

Ich und Du was his response. Not a rejection of science or reason, but an insistence that there is another way of being in the world — older, more primary, easily forgotten — that no amount of knowledge can replace. He called it relation.

Buber does not use relation the way we typically do — as in “the relation between supply and demand” or “a distant relation on my mother’s side.” For Buber, relation is not a connection between two things that already exist separately. It is the event in which both come alive to each other. Think of the difference between studying a photograph of someone’s face and having that person look you in the eye. The photograph gives you information. The eye contact gives you presence. Buber’s relation is that second thing: not a link between two objects, but the living, mutual act of two beings turning toward each other. It cannot be observed from outside. It can only be entered.

Buber believed that without relation, we become something less than fully human.

Why it still matters

A book written for right now

A century later, the condition Buber diagnosed has not improved. It has accelerated. We live inside systems designed to convert every person, interaction, and moment into data — into something measurable, optimisable, extractable. Social media reduces people to profiles. Algorithms decide what we see based on what we have clicked. We have more tools for knowing about each other than any civilisation in history, and arguably less capacity for being present with each other than most.

Buber would not have been surprised. The world he described in 1923 — a world that treats everything as an object to be processed — is now the water we swim in. What makes Ich und Du urgent rather than merely historical is that it offers language for something most people can feel but cannot articulate: the difference between being seen and being scanned. Between a conversation where someone is truly present and one where they are performing presence. Between using the world and meeting it.

The book does not offer a programme or a method. It offers something rarer: a vocabulary for the thing that is missing. And once you have that vocabulary, you begin to notice its absence everywhere.

· · ·
On the primary words

Buber’s pronouns are not grammar.
They are ontology.

Ontology is the branch of philosophy that asks: what exists? Not what we can know (that’s epistemology) or what we should do (that’s ethics), but what kinds of things are real and how they are structured. When we say Buber’s pronouns are ontology, we mean something radical: that saying “Thou” does not merely describe a relationship that already exists — it brings a different kind of reality into being. The pronoun is not a label applied after the fact. It is the act that constitutes the world you inhabit. Grammar classifies speech. Ontology asks what speech creates.

Martin Buber’s 1923 masterwork does not contain a theory of pronouns. It contains something stranger: a claim that the pronouns we speak call different worlds into being. Buber identifies two Grundwörter — primary words — that are always spoken as pairs. These pairs are not composed of two separate words. Each is a single utterance, a single act, spoken with the whole self or not at all.

The first primary word is Ich-Du — I-Thou. The second is Ich-Es — I-It. The “I” in each pair is not the same I. The I of I-Thou is a person in relation. The I of I-It is a subject set apart from its objects. There is no standalone self that precedes these pairings. The word-pair is primary; the self is derivative.

The two primary words

Two breaths, two worlds

Primary word

Ich-Du

I-Thou
The whole person turns toward another whole being. No part held back, no analysis, no motive. This is encounter — not experience.
Primary word

Ich-Es

I-It
A subject observes, classifies, and uses an object. The world of science, language, and function. Necessary — but never the whole of life.

Ich-Du is what Buber calls the primary word of relation. It cannot be spoken with only part of oneself. There is no purpose to it, no content separable from the act of meeting. The Thou is not an object of experience — you do not experience the Thou. You stand in relation to it.

The moment you begin to describe, measure, or analyse the other, the Thou has already become an It. I-Thou exists only in the present — what Buber calls Gegenwart, which means both “the present moment” and “presence.” The It-world knows only the past: by the time experience has been processed into knowledge, the living moment has passed.

The I that speaks I-Thou is what Buber calls a Person. This I does not precede the encounter. The saying of Thou is the I coming into being as a relational self. Selfhood is not a substance but an event — something that happens between beings.

Ich-Es is the primary word of experience. The I here is a subject that stands apart from the world, perceiving it, ordering it, using it. Buber does not condemn this. Science, technology, economics, even ordinary language all operate in the I-It realm. You cannot run a household or diagnose an illness in I-Thou.

What Buber warns against is a life lived only in I-It. When every encounter is reduced to experience, the I itself shrinks into what Buber calls an Eigenwesen — a self-enclosed ego that can no longer enter relation.

Crucially, the I-It world includes all third-person reference. Er (He), Sie (She), and every “they” are all modes of It. The moment you speak about someone rather than to them, they have become an object in your world, however respectfully.

· · ·
The complete relational vocabulary

Every word in Buber’s system

Click any entry to unfold its meaning. Notice that Buber’s system contains two different selves, not one — and that every third-person pronoun collapses into the It-world.

Ich I (in I-Thou) I-Thou realm

The I that speaks I-Thou is what Buber calls a Person. This I exists only in the act of relating. It has no boundaries to defend, no attributes to catalogue, no position to maintain. It turns toward the other with its whole being.

This I is constituted by the relation itself. You do not first exist and then decide to say Thou. The saying of Thou is the I coming into being. Selfhood here is not a substance but an event.

Ich I (in I-It) I-It realm

The I that speaks I-It is what Buber calls an Eigenwesen — a self-contained individual, a subject set apart from its objects. This I has boundaries, properties, a history, a location. It is the I of the census form and the case file.

Buber insists this I is derivative — a contraction of the relational I into something fixed. The more exclusively a person lives in I-It, the more the I becomes an ego rather than a person.

Du Thou / You I-Thou realm

The Thou is not an object with attributes. It is a presence that fills the entire horizon. Buber uses the German Du — the intimate form of address, spoken to God, to lovers, to children. Walter Kaufmann later argued “You” was truer to Buber’s intent than the archaic “Thou,” which had become churchly — exactly the opposite of what Buber meant.

When you meet a Thou, you do not perceive a collection of qualities. You meet an irreducible wholeness. And then, inevitably, it recedes. Every Thou must become an It. This is not failure. It is the rhythm of human life.

Es It I-It realm

The It is not a pejorative. It is the world as experienced, known, and used. Every object of perception, every datum of science, every person considered in terms of function — all are It.

But the It is always past tense. By the time something has become an object of experience, the living encounter has ended. The It-world is a world of Erfahrung (experience) rather than Beziehung (relation). You accumulate experience; you cannot accumulate relation.

Er He I-It realm

Buber folds all third-person pronouns into the It-world. When you refer to someone as “he,” you have already stepped out of direct address and into description. You are speaking about a person rather than to them.

This does not mean speaking about others is wrong. It means it is not relation. The act of third-person reference places someone in the structured world of It, where they become a node in your network of knowledge rather than a presence you are facing.

Sie She I-It realm

Like Er, the pronoun Sie belongs entirely to the I-It world. To speak of someone as “she” is to make them an object of discourse — someone whose attributes you can list, whose behaviour you can predict, whose role you can assess.

Buber makes no distinction between he, she, and it in this regard. All third-person forms are modes of objectification, however gentle. The only way to encounter another as Thou is in the second person: face to face, in the moment, with the whole self turned toward the whole other.

Das ewige Du The eternal Thou Beyond both

Every particular Thou offers a glimpse through to what Buber calls the eternal Thou. This is not a being among beings. It is the Thou that can never become an It — the relation that persists behind every finite encounter.

Buber identifies the eternal Thou with God, but not the God of theology. God is the address that is always already there when you truly say Thou to any being. The extended lines of relation converge on the eternal Thou. You cannot seek it directly; you can only meet it through the particular.

Every genuine I-Thou encounter has a sacramental quality. Not because cats are divine, but because the capacity for Thou-meeting is itself the trace of something that exceeds any single encounter.

Das Zwischen The between Relational ground

Relation does not live in the I. It does not live in the Thou. It lives between them. Das Zwischen is perhaps Buber’s most original contribution to philosophy. The between is not a compromise or a shared space. It is the event of meeting itself, which belongs to neither party.

This is what distinguishes Buber from idealism (reality in the subject) and realism (reality in the object). The fundamental category is neither subject nor object but relation — the between that constitutes both.

Gegenwart Presence / the present I-Thou realm

Gegenwart means both “the present moment” and “presence.” Buber exploits this double meaning throughout. I-Thou can only happen in the present — not in anticipation, not in memory, not in analysis. And the present can only truly be inhabited through presence.

The I-It world, by contrast, lives in the past. Every experience is already over by the time it becomes knowledge. Only the unprocessed encounter — the meeting that has not yet become experience — is fully present. This is why I-Thou is always fleeting: the instant you reflect on it, it has become I-It.

· · ·
The three spheres

Where relation arises

Buber identifies three realms in which the I-Thou encounter can occur. Each operates at a different relation to language — below it, within it, and beyond it.

Life with nature

Die Natur
Below the threshold of language

You can say Thou to a tree, a horse, a stone — and something stirs in response. Not a human response, but a reciprocity Buber insists is real. The tree does not become a person. But it ceases to be an object.

Buber describes gazing at a tree and passing through layers of I-It apprehension — its species, its structure, its biology — until you enter into relation with it. The tree is no longer a collection of attributes. It is a presence. He is not asserting panpsychism. He is saying that the capacity for I-Thou is the structure of all genuine meeting.

Life with other persons

Die Menschen
Within the horizon of language

The fullest form of I-Thou. Here mutuality is explicit. Two beings face each other, address each other, and are constituted by the encounter. Not because I-Thou requires words, but because human meeting occurs within the horizon of possible speech, even in silence.

Love, for Buber, is not an emotion attached to an object. Love is the responsibility of an I for a Thou. It is not something you feel about someone. It is something that happens between you. Real love demands a kind of unknowing — seeing the other not as a bundle of qualities but as an irreducible whole.

Life with spiritual forms

Geistige Wesenheiten
Beyond what language can hold

The most mysterious sphere. Buber says we can enter I-Thou relation with works of art, ideas, visions, callings. Something addresses you from beyond ordinary perception, and you respond with your whole being.

A poem, a musical form, a mathematical insight — these arrive as a claim upon you. They demand to be realised, spoken, made. The artist does not produce the work; the work calls the maker into relation. This sphere is above language — the Thou here exceeds what words can hold, and giving it form is always a partial translation.

· · ·
The living rhythm

Every Thou becomes an It.
Every It can be met again as Thou.

Buber does not believe we can live permanently in a state of pure encounter.

Encounter is a loaded word for Buber — it does not mean a casual meeting or a chance run-in. It means the moment when you stop experiencing someone or something and start being fully present with them. No agenda, no analysis, no part of yourself held in reserve. You are not gathering information about the other. You are facing them. Buber’s German word is Begegnung — a meeting that changes both parties, because neither is holding anything back.

Buber does not believe we can live permanently in a state of pure encounter, because that would mean never thinking, never analysing, never stepping back to make sense of what just happened — and that is not a human life. But neither is a life spent entirely in the mode of measuring, classifying, and using. The point is the rhythm between the two: we meet, we withdraw into reflection, and then — if we are willing — we meet again. The fully human life is not one that escapes the world of objects and experience. It is one that refuses to stay only there.

Ich-Du Ich-Es
The rarest, most fleeting state. You cannot will it, sustain it, or schedule it. It arrives as what Buber calls grace — unbidden, entire, transforming. The whole world becomes Thou.
You are sitting across from someone you love. Mid-sentence, something shifts. You stop hearing words and start hearing them — not their argument, not their history, but their sheer irreducible presence. For a moment there is no distance between you. You are not observing a person. You are meeting one.
Ich und Du was first published in 1923 by Insel Verlag, Leipzig.
The standard English translation is by Ronald Gregor Smith (1937), revised by Walter Kaufmann (1970).