Martin Heidegger

Philosophy Oct 26, 2025
Quick Definition

Martin Heidegger (1889-1976) was a German philosopher considered one of the most significant and controversial thinkers of the 20th century. His early work was deeply rooted in Edmund Husserl's phenomenology, though he quickly diverged to pursue his own distinct philosophical project.

His magnum opus, Being and Time (Sein und Zeit), published in 1927, is widely regarded as a seminal text in continental philosophy. In this work, Heidegger sought to reawaken the fundamental question of the meaning of Being, which he argued had been forgotten throughout Western philosophical history.

A central concept in Being and Time is Dasein, which Heidegger uses to refer to human existence. Dasein literally means "being-there" and signifies the unique way in which human beings are not merely objects in the world but are fundamentally characterized by their being-in-the-world and their understanding of their own existence.

Heidegger explored the structure of Dasein through concepts like "being-towards-death," "care," and "anxiety." These aspects reveal how Dasein confronts its own finitude and the possibilities of authentic or inauthentic existence, where authenticity involves confronting one's own possibilities rather than conforming to the "they-self."

Temporality is presented as the fundamental horizon for the understanding of Being and the very structure of Dasein. Heidegger argued that Dasein is essentially temporal, stretching into the future, grounded in the past, and making present, which provides the framework for its existence and understanding.

In his later philosophy, Heidegger moved towards a "turn" (Kehre) in his thinking, focusing more on the history of Being and critiquing the entire tradition of Western metaphysics as a "forgetting of Being." He explored the relationship between Being, language, technology, and art, seeking a more primordial understanding of truth.

Heidegger's influence extends across numerous fields, including existentialism, hermeneutics, postmodernism, critical theory, and theology. Philosophers like Jean-Paul Sartre, Jacques Derrida, and Hannah Arendt engaged deeply with his ideas, even when critically.

A significant and deeply problematic aspect of Heidegger's biography is his brief but enthusiastic membership in the Nazi Party and his actions as rector of Freiburg University in 1933-34. This involvement has led to extensive debate about the relationship between his philosophy and his political choices, posing profound ethical and interpretive challenges.

Despite the controversy surrounding his political past, Heidegger's philosophical contributions remain a cornerstone of 20th-century thought. His radical questioning of Being, his innovative conceptual framework, and his profound insights into human existence continue to be rigorously studied, debated, and reinterpreted in contemporary philosophy.

G
Curated by

Glossariz

Chinmoy Sarker
Proofread by

Chinmoy Sarker

Did You Know?

Fun fact about Philosophy

Moral luck highlights that our moral assessments are sometimes influenced by factors beyond our control, raising questions about fairness and personal responsibility.

Source: Glossariz