25 Martin Heidegger Quotes on Being, Time, and Existence

Martin Heidegger (1889-1976) was a German philosopher whose masterwork, Being and Time (1927), is widely regarded as one of the most important philosophical texts of the twentieth century. Raised in a small Catholic town in the Black Forest, Heidegger began training for the priesthood before turning to philosophy. His brilliant early career was permanently shadowed by his involvement with the Nazi Party -- he served as rector of the University of Freiburg in 1933-34 and never publicly apologized for his association with the regime.

In the early 1920s, the young Heidegger was an unknown lecturer at Freiburg when his electrifying teaching style began attracting students from across Germany. Hannah Arendt, who studied with him and briefly became his lover, later described the experience as encountering "the hidden king" of philosophy -- a thinker of such intensity that his very presence seemed to make thinking itself visible. When Being and Time was published in 1927, it struck the philosophical world like an earthquake. Heidegger argued that Western philosophy had forgotten the most basic question of all: what does it mean to be? His analysis of human existence -- as finite, anxious, thrown into a world we did not choose, and constantly fleeing from our own mortality -- laid the groundwork for existentialism. As he wrote: "The most thought-provoking thing in our thought-provoking time is that we are still not thinking." That provocative challenge -- that even philosophers have yet to confront what truly matters -- remains a powerful call to intellectual seriousness.

Who Was Martin Heidegger?

Key Achievements and Episodes

Being and Time — A Philosophical Earthquake

Published in 1927, Being and Time asked the most fundamental question in philosophy: "What does it mean to be?" Heidegger argued that Western philosophy had forgotten this question since the ancient Greeks. The book introduced concepts like Dasein, thrownness, and being-toward-death that transformed philosophy and influenced existentialism, hermeneutics, and postmodernism.

The Nazi Rectorship and Its Lasting Shadow

In 1933, Heidegger became rector of the University of Freiburg and joined the Nazi Party. He delivered a notorious rectoral address celebrating the new regime. Though he resigned the rectorship after one year, he never publicly apologized for his involvement with Nazism. The Black Notebooks, published posthumously, revealed antisemitic passages that deepened the controversy.

The Turn to Language and Technology

In his later work, Heidegger turned from analyzing human existence to exploring language, art, and technology. He warned that modern technology reduces everything — including human beings — to mere resources for exploitation. His essay "The Question Concerning Technology" (1954) remains one of the most influential critiques of the technological age.

Who Was Martin Heidegger?

Martin Heidegger was born on September 26, 1889, in Messkirch, a small town in the rural southwest of Germany, in the Grand Duchy of Baden. His father, Friedrich Heidegger, was the sexton of the local Catholic church of St. Martin; his mother, Johanna Kempf Heidegger, came from a farming family. The family was of modest means, and Heidegger's early education was shaped by the Catholic Church, which provided scholarships that enabled him to attend secondary schools in Konstanz and Freiburg. As a teenager he was introduced to philosophy through Franz Brentano's On the Several Senses of Being in Aristotle, a gift from a local priest, and later said that this book awakened the question that would dominate his entire life: What is the meaning of being?

Heidegger initially studied theology at the University of Freiburg, intending to become a Jesuit priest, but health problems and growing intellectual restlessness led him to switch to philosophy and mathematics. He completed his doctoral dissertation in 1913 on the doctrine of judgment in psychologism and his habilitation thesis in 1915 on Duns Scotus's doctrine of categories and meaning. After serving briefly in the military during World War I (he was assigned to meteorological and postal duties due to health issues), he returned to Freiburg as an assistant to Edmund Husserl, the founder of phenomenology. Under Husserl's influence, Heidegger developed the phenomenological method that would become the foundation of his own philosophy, though he would ultimately transform it beyond recognition.

In 1923 Heidegger was appointed to a professorship at the University of Marburg, where his electrifying lectures attracted students from across Europe, including Hannah Arendt (with whom he began a secret romantic affair), Hans-Georg Gadamer, Hans Jonas, and Karl Löwith. It was at Marburg that he completed Being and Time (Sein und Zeit), published in 1927 and dedicated to Husserl. The book argued that Western philosophy had "forgotten" the question of being by treating it as self-evident, and proposed a new approach through the analysis of Dasein — the human being understood as the entity whose existence is always an issue for it. Through concepts such as being-in-the-world, thrownness, care, anxiety, and being-toward-death, Heidegger provided a radical reinterpretation of what it means to exist as a human being. The book was an immediate sensation and established Heidegger as the most important philosopher of his generation.

In 1928 Heidegger succeeded Husserl as professor of philosophy at Freiburg, and in April 1933 he was elected rector of the university. Within weeks he joined the Nazi Party and delivered an infamous rectoral address, "The Self-Assertion of the German University," that appeared to align the mission of the university with the National Socialist revolution. The extent and sincerity of Heidegger's engagement with Nazism remains one of the most debated questions in twentieth-century intellectual history. He resigned the rectorship in April 1934 and later claimed to have distanced himself from the regime, but he never publicly renounced his party membership (which he held until 1945) and never issued a clear condemnation of the Holocaust. After the war, a denazification committee banned him from teaching until 1951. The publication of his Black Notebooks in 2014 revealed antisemitic remarks that deepened the controversy surrounding his legacy.

Despite the moral shadow cast by his political choices, Heidegger's philosophical output after Being and Time was immense and profoundly influential. In what scholars call the "turn" (die Kehre), his later thinking moved away from the analysis of human existence toward a meditation on being itself, language, art, and technology. Works such as The Question Concerning Technology (1954), The Origin of the Work of Art (1935/1950), and Letter on Humanism (1947) explored how modern technology transforms our relationship to the world and how poetry and art can open paths to a more authentic way of dwelling on earth. He spent his later years in Freiburg and at his rustic cabin in Todtnauberg in the Black Forest, writing, lecturing, and receiving visitors. He died on May 26, 1976, at the age of eighty-six, and was buried in the cemetery at Messkirch, near the church where his father had served as sexton. His collected works, the Gesamtausgabe, will eventually comprise over 100 volumes, making him one of the most prolific as well as one of the most controversial philosophers in the history of Western thought.

Heidegger Quotes on Being & Existence

Heidegger quotes on being and existence pose the question he considered the most fundamental in all of philosophy: "why are there beings at all, and why not rather nothing?" This question, which opens his 1935 lecture course Introduction to Metaphysics, revives what Heidegger believed the entire Western philosophical tradition had forgotten — the question of Being itself (Sein), as opposed to the study of particular beings (Seiende). His masterwork Being and Time (1927), written in a sustained burst of creative energy at his cabin in the Black Forest village of Todtnauberg, attempted to reawaken this question by analyzing human existence (Dasein — literally "being-there") as the entity that has a unique relationship to its own being. The book's dense, neologism-laden prose has frustrated and inspired readers in equal measure, but its influence on subsequent philosophy, theology, psychiatry, and literary criticism has been enormous. Heidegger's early career at the University of Freiburg was marked by electrifying lectures that attracted students from across Germany — Hannah Arendt later described the experience as encountering "thinking as a living activity."

Heidegger Quotes on Death & Authenticity

Heidegger quotes on death and authenticity present his existential analysis of mortality as the key to genuine self-understanding. His teaching that confronting death frees us "from the anxiety of death and the pettiness of life" draws on his concept of "Being-toward-death" (Sein-zum-Tode), developed in Division II of Being and Time. Heidegger argues that most people live in a state of inauthenticity (Uneigentlichkeit), fleeing from the awareness of their own mortality into the comfortable anonymity of "das Man" (the They) — doing what "one" does, thinking what "one" thinks, avoiding the confrontation with finitude that alone makes authentic existence possible. This analysis profoundly influenced existentialist philosophy, particularly Sartre's concepts of bad faith and authenticity, as well as the development of existential psychotherapy by figures like Ludwig Binswanger, Medard Boss, and Irvin Yalom. Heidegger's own confrontation with mortality took on a different dimension after his involvement with the Nazi Party as rector of the University of Freiburg in 1933-1934 — a collaboration he never publicly repudiated, creating a profound moral shadow over his philosophical legacy that scholars continue to debate.

Heidegger Quotes on Technology & Language

Heidegger quotes on technology and language represent the major themes of his later philosophical work, which shifted from the existential analysis of Being and Time to a poetic meditation on the relationship between humans, technology, and the disclosure of truth. His paradoxical assertion that "the essence of technology is by no means anything technological" — from his influential 1954 lecture "The Question Concerning Technology" — argues that technology is not merely a collection of tools and machines but a fundamental way of relating to reality that transforms everything into a "standing reserve" (Bestand) of resources to be exploited. This analysis anticipates contemporary concerns about environmental destruction, algorithmic control, and the reduction of human beings to data points. In his later years, Heidegger turned increasingly to poetry — particularly the work of Hölderlin and Rilke — as a mode of thinking that could resist the calculative rationality of technological modernity. His famous declaration that "language is the house of Being" reframes language not as a tool for human communication but as the medium through which reality itself reveals and conceals itself.

Frequently Asked Questions About Martin Heidegger

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