I and Thou
I and Thou, published in 1923 under its original German title Ich und Du, arrived at a moment when Martin Buber had a precise diagnosis for a sickness he saw spreading through modern life. He believed that people had begun to treat everything around them, including other people, as objects to be measured, used, and catalogued. His remedy was not political or medical. It was philosophical, and it rested on two small pairs of words.
The book sets up a contrast between two fundamental stances a person can take toward the world. In one stance, you relate to things and people as "It": discrete, bounded objects you can experience and analyze. In the other stance, you relate through "Thou": a mode in which boundaries dissolve and genuine connection becomes possible. Buber argued that human life finds its meaning only in the second mode, and that every true Thou relationship ultimately opens onto something he called the Eternal Thou.
By 1937, Ronald Gregor Smith had carried Buber's German across into English for the first time. A second English translation, by Walter Kaufmann, appeared in 1970. Both translators grappled with the same challenge: rendering a pronoun, Du, that modern English had largely abandoned. The stakes of that translation choice would matter enormously, because the book went on to shape humanistic psychology, Civil Rights theology, and the philosophy of encounter in ways Buber could not have anticipated in 1923.
Buber built his entire framework on the claim that humans are defined by two word pairs: I-It and I-Thou. These are not simply grammatical categories. They describe two entirely different ways of being in the world.
The I-It pairing covers the world of experience and sensation. When you encounter something as an It, you perceive it as a bounded object, one that belongs to a defined set and is distinguishable from other objects by measurable differences. Buber held that a person can have as many distinct I-It relationships as there are Its in their life, each one a separate, catalogued encounter.
The I-Thou pairing works differently. It describes a relationship rather than an experience. Buber argued that I-Thou connections are sustained in the spirit and mind for as long as the sense of relation remains dominant. The relationship does not require the other party to know it is happening. A person sitting on a park bench, thinking positively about people in general, immediately draws a stranger sitting nearby into an I-Thou relationship, even if the stranger has no awareness of it.
Crucially, the Thou is not limited to relationships between people. Buber's framework allows an I-Thou encounter with a tree, the sky, or the park bench itself. What matters is the abandonment of the world of sensation, the dissolving of separation, so that the relation itself becomes the foremost reality. The word "I" cannot stand alone in Buber's system; it always requires one of these two partners, and whichever partner is attached determines what kind of world the speaker inhabits.
To show how a single object can sit at the boundary between I-It and I-Thou, Buber chose a tree, and he pressed it through five distinct relations.
First, a person can look at the tree as a picture, taking in its color and detail through aesthetic perception. Second, that same person can identify the tree as movement: the flow of juices through its veins, the breathing of its leaves, the roots pulling water from the earth, the constant exchange between tree and soil and air. Third, one can categorize the tree by type, subjecting it to study. Fourth, Buber describes a more detached stance, in which a person subdues the tree's presence so completely that it becomes only an expression of law. Fifth, the encounter can be rendered entirely in mathematical terms.
Through every one of these five relations, the tree remains an object that occupies time and space. All five modes leave it firmly in the I-It world. Buber's point is not that these five modes are wrong or inferior. They are part of how the world works. His point is that none of them constitutes a genuine encounter.
Love, Buber argued, belongs to a different category entirely. It is not a subject-to-object relation. Love places both parties in the position of subjects at once, and they share what Buber called the unity of being. The I-Thou relation cannot be explained, he wrote; it simply is. Nothing can intervene in it, and it is never a means to some further goal.
Buber's most far-reaching claim was that the I-Thou relation, followed far enough, always leads to God. One of the book's central propositions holds that all human relationships ultimately bring a person into relationship with God, whom Buber named the Eternal Thou.
Every time someone speaks the word Thou, Buber argued, they are indirectly addressing God. He stated this explicitly in the book: "You need God in order to be, and God needs you for that which is the meaning of your life." That reciprocity is important. God, in Buber's framing, is not simply a distant object of worship but an active partner in the relationship.
In the I-Thou relation with God, there are no barriers of the kind that constrain ordinary I-It encounters. God is spoken to directly, not spoken about. Buber also wrote that the divine manifests in music, literature, and other forms of culture, meaning that an attentive encounter with a piece of music or a poem could itself be a form of addressing the Eternal Thou.
The logical endpoint of Buber's framework is that a life guided by I-Thou has no world that disconnects one from God. He put it directly: "One who truly meets the world goes out also to God." The reverse is equally true for Buber; a life dominated by I-It, in which every encounter is an experience of an object, forecloses the kind of genuine meeting that opens toward the divine.
In 1957, Martin Buber traveled to the United States and sat down with Carl Rogers for a conversation that would become known as their famous Dialogue. Rogers had become one of the founding fathers of modern humanistic psychology, and he brought Buber's ideas directly into his clinical work.
Rogers compared his person-centered therapy to the I-Thou relationship, arguing that the psychological contact necessary for genuine therapeutic change was structurally the same as the meeting Buber described. The two men did not agree entirely. Buber pushed back, noting that the therapist-client relationship sits on somewhat unequal footing; a therapist arrives with professional expertise, a client arrives in need. That asymmetry troubled him.
Still, they reached a point of agreement. Both conceded that genuine, momentary connections do occur between therapist and client, connections that are both reciprocal and carry a degree of mutuality. Rogers went further in his own observations: when clients undergo real change in therapy, he said, there is a distinct connection and understanding between the two people in the room, something he recognized as fitting the structure of an I-Thou encounter.
That 1957 conversation placed Buber's 1923 book at the center of a debate about what it means for two people to truly meet, a debate that the field of psychotherapy had been circling without quite naming.
Martin Luther King Jr. read Buber carefully, and he found in the I-Thou framework a precise vocabulary for something he had been trying to say about segregation.
King quoted the I-Thou relationship in his Letter from Birmingham Jail and returned to it in a sermon called "A Testament of Hope." In that sermon, he described the cultural and legal climate of racial segregation as an I-It relationship. Under segregation, Black Americans were not encountered as Thou but processed as It: bounded, categorized, reduced to their measurable differences from others.
King argued that the transformation King sought required something more than legal change. It required a shift in perception, the recognition of divinity within the African American population. Only when that recognition occurred, he said, would the relationship become I-Thou. He stated it plainly: "I cannot reach fulfillment without thou."
In the Letter from Birmingham Jail, King returned to the same structure, reiterating that the I-It relationship inherent in segregation does reduce human beings to things. Buber's philosophical language gave King a framework that operated across both the theological and the political registers at once. A book written in German in 1923 had become, by the 1960s, a resource for one of the most important moral arguments in American history.
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Common questions
What is the main argument of I and Thou by Martin Buber?
Buber argues in I and Thou that humans can address existence in two fundamental ways: as I-It, treating others as discrete objects to be experienced and used, or as I-Thou, entering genuine relationships in which the other is not separated by discrete bounds. His central claim is that human life finds its meaningfulness in the I-Thou mode, and that all true I-Thou relationships ultimately lead to God, whom he calls the Eternal Thou.
When was I and Thou first published and who wrote it?
I and Thou was written by Martin Buber and first published in 1923 under its German title Ich und Du. It was first translated into English in 1937 by Ronald Gregor Smith, with a second English translation by Walter Kaufmann following in 1970.
How did Martin Buber's I and Thou influence Carl Rogers?
Carl Rogers, one of the founding fathers of modern humanistic psychology, drew directly on Buber's I-Thou concept when developing his person-centered therapy. In 1957, Rogers and Buber held a public Dialogue in which Rogers compared the psychological contact in therapy to the I-Thou relationship. Both men agreed that genuine, reciprocal moments of connection do occur between therapist and client, even as Buber noted the inherent inequality of the therapeutic relationship.
How did Martin Luther King Jr. use I and Thou in his writings?
Martin Luther King Jr. quoted the I-Thou relationship in his Letter from Birmingham Jail and in his sermon "A Testament of Hope." King described racial segregation as an I-It relationship that reduced Black Americans to things, and argued that only recognizing the divinity within the African American population would transform the relationship to I-Thou. He stated directly, "I cannot reach fulfillment without thou."
What is the difference between I-Thou and I-It in Buber's philosophy?
In I and Thou, I-It describes the world of experience and sensation, in which a person perceives others as bounded, discrete objects measurable by their differences from other entities. I-Thou describes the world of genuine relation, in which the separation between persons dissolves and connection becomes the dominant reality. Buber held that I-Thou relationships can exist with people, with nature such as a tree, and ultimately with God.
What role does God play in Buber's I and Thou?
Buber identifies God as the Eternal Thou, the ultimate endpoint of all I-Thou relationships. He argued that every time a person addresses another as Thou, they are indirectly addressing God, and he wrote that "You need God in order to be, and God needs you for that which is the meaning of your life." In Buber's framework, God is present in music, literature, and culture, and is spoken to directly rather than merely spoken about.
All sources
5 references cited across the entry
- 1bookEncyclopedia of Couple and Family TherapyBrittany Salerno — Springer International Publishing — 2017
- 2journalThe 1957 Martin Buber-Carl Rogers Dialogue, as DialogueKenneth N. Cissna et al. — January 1994
- 3webA Testament of Hope: The Essential Writings and Speeches of Martin Luther King, Jr.Martin Luther King
- 5webMartin BuberMichael Zank et al. — Metaphysics Research Lab, Stanford University — 2014