What is Heidegger's masterwork of 1927 called?
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Being and Time
It made him world-famous overnight and remained, as planned, unfinished.
💡 Did you know? „Being and Time“ (1927) made Heidegger instantly famous: yet it remained unfinished.
13 questions · Philosophy
Martin Heidegger, born in 1889 in Meßkirch in Baden, the son of a cooper and sexton, began as a student of Catholic theology, turned to philosophy, and became assistant to Edmund Husserl, the founder of phenomenology. In 1927 appeared the work that made him world-famous overnight: 'Being and Time'. Heidegger posed the old question of the 'meaning of Being' in a radically new way: not abstractly, but starting from the human being, whom he calls 'Dasein': the being for whom, in its very being, that being is at issue. Dasein is 'being-in-the-world', mostly scattered into the 'they': into what 'one' does and says. Existence becomes authentic only when it faces its own finitude: the human being is 'being-towards-death', and anxiety (not fear of something, but of the nothing) can call it back to itself. Then the darkest turn: in 1933 Heidegger became rector of Freiburg University, joined the Nazi party and publicly promoted the regime; towards his Jewish teacher Husserl he behaved shabbily. He resigned the rectorate after a year but remained a party member until 1945 and never publicly apologised. The posthumously published 'Black Notebooks' further document antisemitic patterns of thought. How this stain squares with the thinker's stature is perhaps the sharpest controversy in 20th-century philosophy. For the influence is enormous: Sartre's existentialism, Gadamer's hermeneutics, deconstruction and architectural theory all draw on Heidegger. The late Heidegger, thinking from the 'end of metaphysics', reflected on technology ('enframing'), on language ('the house of Being') and on 'releasement' (Gelassenheit). Did you know that Heidegger preferred to work in his Black Forest hut at Todtnauberg, without electricity or running water? He died in 1976 and lies buried in Meßkirch.
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Being and Time
It made him world-famous overnight and remained, as planned, unfinished.
💡 Did you know? „Being and Time“ (1927) made Heidegger instantly famous: yet it remained unfinished.
Dasein
The being for whom, in its very being, that being is at issue: 'being-in-the-world'.
💡 Did you know? Instead of „human“ Heidegger says „Dasein“: a being for whom its own being is at issue.
being-towards-death
Only by facing one's own finitude does one exist 'authentically'.
💡 Did you know? Only awareness of one's own mortality lets a person live „authentically“, according to Heidegger.
the they
What 'one' does, thinks, says: inauthentic existence in the average of the others.
💡 Did you know? „The They“ (das Man) is the anonymous mass we dissolve into: „that's just how one does it“, without choosing for oneself.
Edmund Husserl
'Being and Time' is dedicated to Husserl: Heidegger had the dedication removed in the Nazi era; his conduct towards his Jewish teacher is considered shabby.
💡 Did you know? Heidegger was assistant to Husserl, the founder of phenomenology: but broke with his Jewish teacher in the Nazi era.
rector of Freiburg
He publicly promoted the regime, remained a party member until 1945 and never publicly apologised.
💡 Did you know? In 1933 Heidegger became the Nazi rector of Freiburg University: the most controversial point of his biography to this day.
Black Notebooks
Their publication from 2014 onwards reignited the controversy over thinker and work.
💡 Did you know? The posthumously published „Black Notebooks“ contain antisemitic passages and weigh heavily on his memory.
in the hut at Todtnauberg
The 'hut' became a myth: after his visit, Paul Celan wrote the poem 'Todtnauberg'.
💡 Did you know? Heidegger most liked to think and write in his simple mountain hut in the Black Forest, without electricity or running water.
enframing
Technology 'enframes' nature and man as mere standing-reserve: from the lecture 'The Question Concerning Technology'.
💡 Did you know? With „enframing“ (Gestell) the late Heidegger describes how modern technology sees the world only as a stock of raw material.
the house of Being
From the 'Letter on Humanism' (1946): in language, man dwells.
💡 Did you know? „Language is the house of being“: in it, said Heidegger, being dwells and shows itself.
existentialism
Gadamer's hermeneutics and Derrida's deconstruction also draw on him: despite all controversy.
💡 Did you know? Without Heidegger's „Being and Time“, Sartre's existentialism would be unthinkable: even though Heidegger distanced himself from it.
Meßkirch
Born in 1889, the son of a cooper and sexton; died in 1976: he remained demonstratively true to his origins.
💡 Did you know? Heidegger was born in Meßkirch in Baden and is buried there too: attached to his homeland all his life.

Foto: Willy Pragher · CC BY-SA 3.0 · Wikimedia Commons
Martin Heidegger
Martin Heidegger was a German philosopher whose main work „Being and Time“ posed anew the question of the meaning of being.
💡 Did you know? His entanglement with National Socialism and the antisemitic „Black Notebooks“ still weigh on his memory.
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