Martin Heidegger

Based on Wikipedia: Martin Heidegger

{"https://en.wikipedia.org/wiki/Martin_Heidegger": "On May 1, 1937, Martin Heidegger signed his name to the most important book in modern philosophy—Being and Time—and it changed how humanity understood existence itself. But by that same date, he had already committed a far more consequential act: on May 1, 1935, he joined the National Socialist Party, pledging allegiance to Adolf Hitler and the regime that would soon become synonymous with genocide. The philosopher who would眩晕 modern thought in ways few others could also became one of its most troubling figures.

The German town of Meßkirch, where Heidegger was born on September 26, 1889, offered little indication of the intellectual earthquake to come. His father, Friedrich, served as village church sexton—a humble position in the Catholic hierarchy of Baden. The young Martin received an education steeped in the faith: from 1903 forward, he trained for the priesthood, entering a Jesuit seminary in 1909. He was discharged within weeks due to heart trouble—physical frailty that would plague him throughout his life—but this setback proved transformative. It was during this period of religious training that he first encountered the works of Franz Brentano, opening a door to philosophy that would never close.

Heidegger's trajectory toward the priesthood ended in 1911, but his intellectual appetite had only intensified. He turned his attention to recent philosophy—specifically Edmund Husserl's Logical Investigations—and enrolled at the University of Freiburg to study theology and scholastic philosophy. His graduation thesis in 1914 bore the formidable title The Doctrine of Judgment in Psychologism: A Critical-theoretical Contribution to Logic, demonstrating both his scholarly rigor and the dense, technical nature of his early work.

His habilitation followed in 1915, a dissertation on Duns Scotus titled Duns Scotus's Doctrine of Categories and Meaning. Directed by Heinrich Rickert, a neo-Kantian philosopher, and influenced by Husserl's phenomenology, this work signaled Heidegger's arrival as a serious academic thinker. Yet despite his credentials, he failed to secure the Catholic philosophy professorship at Freiburg on June 23, 1916—a rejection that would not halt his ascent.

The war years marked a turning point. From 1919 to 1923, Heidegger taught at the University of Freiburg and served as assistant to Edmund Husserl, who had held the philosophy chair since 1916. He worked briefly as an unsalaried Privatdozent before serving in his final year of World War I—ten months in a meteorological unit on the western front, deemed unfit for combat.

By 1923, Heidegger received election to an extraordinary professorship in philosophy at the University of Marburg. His colleagues there included Rudolf Bultmann, Nicolai Hartmann, Paul Tillich, and Paul Natorp. But his students would prove far more consequential than his peers: Hans-Georg Gadamer, Hannah Arendt, Karl Löwith, Leo Strauss, Jacob Klein, Günther Anders, and Hans Jonas attended his lectures—a remarkable roster of minds that would shape twentieth-century thought.

It was at Marburg that Heidegger began developing his central philosophical preoccupation: the question of the sense of being. He extended Aristotle's concept of subject to the dimension of history and concrete existence, drawing from Christian thinkers like Paul of Tarsus, Augustine of Hippo, Martin Luther, and Søren Kierkegaard. He also engaged deeply with Wilhelm Dilthey, Husserl, Max Scheler, and Friedrich Nietzsche—absorbing their insights while preparing to upend their frameworks.

The Being of Time

In 1927, Heidegger published Sein und Zeit (Being and Time), and the philosophical world shifted permanently. The book was not merely an academic treatise—it was a radical restructuring of how humans understood existence itself. It raised Heidegger to "a position of international intellectual visibility," in the words of later scholars, and introduced concepts that would become foundational to modern philosophy.

The most significant of these was Dasein—a German term meaning literally "being-there" but which Heidegger invested with profound new meaning. He used Dasein to describe the distinctive character of human existence: humans possess a "pre-ontological" understanding of being that shapes how they live and act, an awareness that precedes formal philosophical reflection.

Heidegger analyzed this through the unitary structure of being-in-the-world—the idea that human existence is never isolated or abstract but always already situated in a world of practical involvement and meaningful engagement. Through his analysis of Dasein, he sought to reawaken what he called "the question of being": the fundamental inquiry into what makes entities intelligible as the entities they are.

This was not a minor technical concern. Heidegger believed that this question—the question of what makes beings comprehensible as beings—had been neglected or obscured throughout the history of Western philosophy since the ancient Greeks. He sought to restore it to its proper centrality, arguing that without asking this fundamental question, all other philosophical inquiries remain unstable.

When Husserl retired as professor of philosophy in 1928, Heidegger accepted Freiburg's election to be his successor, despite a counteroffer from Marburg. His inaugural lecture in 1929 bore the title "What is Metaphysics?"—a fitting gateway into his magnum opus. That same year he published Kant and the Problem of Metaphysics. He remained at Freiburg im Breisgau for the rest of his life, declining later offers—including one from Humboldt University of Berlin.

The Nazi Years

The year 1933 changed everything. On April 21, Heidegger was elected rector of the University of Freiburg. Three months after Adolf Hitler assumed chancellorship, Heidegger joined the Nazi Party on May 1—and then served as an enthusiastic supporter of the regime.

His inaugural address as rector on May 27 expressed support for "the German revolution," and in articles and speeches to students that same year, he voiced explicit backing for Hitler. In November 1933, Heidegger signed the Oath of Allegiance of the Professors of the German Universities and High-Schools to Adolf Hitler and the National Socialist State.

He wanted to position himself as the philosopher of the party—but the abstract nature of his work and the opposition of Alfred Rosenberg, who aspired to that role, limited his influence. He resigned from the rectorate in April 1934, pursuing a teaching agenda aligned with Nazi cultural politics until 1945.

The controversy surrounding his commitment to Nazism has never fully subsided. Some scholars argue there is an inherent connection between his philosophy and his political choices; others contend that his thinking remained distinct from ideological application. What is certain is that after the war, Heidegger faced denazification proceedings and was banned from teaching—a ban lifted in 1949, when he returned to lecturing at Freiburg.

His refusal to publicly repudiate his Nazi involvements or express unambiguous remorse has troubled interpreters of his work ever since.

The Later Work

The years following his rectorate saw Heidegger developing themes that would prove as influential as Being and Time. In 1935, he delivered "The Origin of the Work of Art," exploring art as a gateway to truth. The following year, in Rome, he gave his first lecture on Friedrich Hölderlin.

From 1936 to 1940, Heidegger wrote what some consider his second greatest work: Contributions to Philosophy. It would not be published until 1989—thirteen years after his death—but its influence had already begun through lectures and private seminars. He also delivered a series of lectures on Friedrich Nietzsche at Freiburg, presenting much material that would appear in published form in 1961.

His later work turned increasingly to questions of technology, language, art, and poetry—developing themes of human "dwelling" in the world and critiquing what he saw as the nihilistic trajectory of modern technological civilisation. This shift toward the poetic and the elemental would shape philosophical inquiry for generations.

The Legacy

Heidegger's students at Freiburg included Hannah Arendt, Günther Anders, Hans Jonas, Karl Löwith, Charles Malik, Herbert Marcuse, and Ernst Nolte—another extraordinary roster. Emmanuel Levinas attended his lecture courses during this period; Jan Patočka, who was deeply influenced by him, attended lectures in 1933.

Thinkers as varied as Jean-Paul Sartre, Hans-Georg Gadamer, Hannah Arendt, Jacques Derrida, and Richard Rorty were substantially shaped by engagement with his thought—whether in agreement or opposition. His influence on phenomenology, hermeneutics, existentialism, theology, literary theory, and political philosophy remains unmatched.

Heidegger died on May 26, 1976, in Freiburg. The questions he raised about being—the fundamental inquiry into what makes entities intelligible as the entities they are—remain unresolved and generative, nearly half a century later."}