Gilles Deleuze

Early Life and Education

Gilles Deleuze was born on January 18, 1925, in Paris, where he would spend most of his life. He grew up in a middle-class family in the 17th arrondissement. His older brother, Georges, was deported during World War II and died in transit to a concentration camp — an event that deeply marked the young Deleuze. During the German occupation, Deleuze completed his secondary education at the Lycée Carnot.

He studied philosophy at the Sorbonne from 1944 to 1948, where his teachers included Ferdinand Alquié, Georges Canguilhem, and Jean Hyppolite. These mentors introduced him to the rationalist tradition, the history and philosophy of science, and Hegel, respectively — influences he would both absorb and rebel against throughout his career.

The Historian of Philosophy (1953–1969)

Deleuze's early career was devoted to a series of brilliantly idiosyncratic monographs on major philosophers. His studies of Hume (Empiricism and Subjectivity, 1953), Nietzsche (Nietzsche and Philosophy, 1962), Kant (Kant's Critical Philosophy, 1963), Bergson (Bergsonism, 1966), and Spinoza (Expressionism in Philosophy: Spinoza, 1968) were not conventional scholarly commentaries but creative reinterpretations that extracted a counter-tradition within Western philosophy — one emphasizing difference, immanence, and affirmation over identity, transcendence, and negation.

His Nietzsche and Philosophy (1962) was particularly influential, offering a reading of Nietzsche as a rigorous philosopher of forces, will to power, and eternal return that challenged the dominant Hegelian-Marxist framework of French intellectual life. The book helped catalyze a broader French turn toward Nietzsche.

The Great Works (1968–1980)

In 1968–69, Deleuze published his two doctoral theses: Difference and Repetition and The Logic of Sense. Difference and Repetition is widely considered his philosophical masterpiece — a systematic attempt to think difference in itself, freed from subordination to identity, analogy, opposition, or resemblance. Drawing on Nietzsche's eternal return, Leibniz's differential calculus, and Simondon's individuation theory, Deleuze elaborated a metaphysics in which being is constituted by differential relations and intensive quantities rather than by fixed essences.

The Logic of Sense (1969) explored the paradoxes of meaning through a creative reading of the Stoics and Lewis Carroll, developing a theory of sense as an incorporeal surface effect irreducible to either physical causation or psychological intention.

In 1969, Deleuze met Félix Guattari, a politically radical psychoanalyst and institutional therapy practitioner. Their collaboration proved extraordinarily productive. Anti-Oedipus (1972), the first volume of Capitalism and Schizophrenia, mounted a fierce attack on psychoanalytic orthodoxy and capitalist social organization, arguing that desire is not structured by lack (as in Freud and Lacan) but is a productive, machinic force that capitalism simultaneously unleashes and reterritorializes. The book became an intellectual sensation in post-1968 France.

A Thousand Plateaus (1980), the second volume, is one of the most inventive philosophical works of the twentieth century. Organized as a series of "plateaus" rather than linear chapters, it develops concepts including the rhizome (a non-hierarchical model of thought and organization), the body without organs, deterritorialization and reterritorialization, the war machine, smooth and striated space, faciality, and assemblage theory. The work moves fluidly across linguistics, ethology, geology, music, mathematics, and political theory.

Later Work and Legacy (1980–1995)

After A Thousand Plateaus, Deleuze continued to produce major works. Francis Bacon: The Logic of Sensation (1981) developed a philosophy of painting through the work of Francis Bacon. His two-volume study of cinema — Cinema 1: The Movement-Image (1983) and Cinema 2: The Time-Image (1985) — drew on Bergson and Peirce to create a philosophical taxonomy of cinematic signs, arguing that cinema thinks in images and that postwar cinema achieved a direct presentation of time that broke with the sensory-motor schema of classical cinema.

The Fold: Leibniz and the Baroque (1988) reread Leibniz through the concept of the fold as a figure of infinite variation. What Is Philosophy? (1991), his final collaboration with Guattari, distinguished philosophy (creation of concepts), science (creation of functions), and art (creation of affects and percepts) as three autonomous modes of thought.

Deleuze suffered from severe respiratory illness for much of his later life. On November 4, 1995, he took his own life by jumping from the window of his Paris apartment. He was 70 years old.

His influence has only grown since his death, shaping new materialism, affect theory, assemblage theory, digital humanities, and contemporary aesthetics.