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Martin Heidegger

Life

Martin Heidegger (1889–1976) was a German philosopher who revolutionized 20th century philosophy with his work on ontology and phenomenology. Born in Messkirch, Germany, he studied theology and philosophy at the University of Freiburg under Edmund Husserl. His academic career included professorships at Marburg (1923-1928) and Freiburg (1928-1945), where he served as rector during the Nazi regime (1933-1934). Key milestones include the publication of Being and Time (1927), his controversial Nazi affiliation, and his later "turn" (Kehre) toward language and poetry.

People Who Influenced Their Thought

• Edmund Husserl: Heidegger's mentor, whose phenomenology he radically transformed
• Aristotle: Ancient Greek philosophy, particularly Aristotle's concept of being, deeply influenced Heidegger
• Friedrich Hölderlin: The German poet's work shaped Heidegger's later philosophy of language
• Meister Eckhart: Medieval mystic who influenced Heidegger's concept of Gelassenheit (releasement)

Main Ideas and Publications

• Being and Time (1927): Groundbreaking work on fundamental ontology and Dasein (human existence)
• Dasein: Concept of human being as always already engaged in meaningful world
• The Turn (Kehre): Shift from focus on Dasein to Being itself in his later work
• Letter on Humanism (1947): Critique of traditional humanism and metaphysics
• Technology Question: Later writings on how modern technology reveals being in dangerous ways

Controversies around his main work or thought

• Nazi Affiliation: His 1933-34 rectorship and party membership remain intensely debated, with critics like Emmanuel Levinas condemning his political choices
• Philosophical Obscurity: Rudolf Carnap famously attacked Heidegger's language as meaningless metaphysics
• Appropriation Concerns: Some scholars argue Jacques Derrida and others misrepresented aspects of his thought
• Anti-Semitism: Posthumous publication of Black Notebooks revealed troubling remarks about Jews

Key People Influenced by Their Thought

• Hans-Georg Gadamer: Developed philosophical hermeneutics from Heidegger's work
• Jean-Paul Sartre: Adapted Heidegger's ontology for existentialism (though Heidegger rejected this)
• Jacques Derrida: Built deconstruction on Heidegger's critique of metaphysics
• Hannah Arendt: Student/lover who applied his concepts to political theory while critiquing his politics

Legacy

Martin Heidegger fundamentally transformed Western philosophy by recentering the question of Being while leaving a complex legacy marred by political controversy. ```