What Is Existentialism: Sartre, Camus, and the Search for Meaning

What Makes Existentialism Distinctive

Existentialism is not a single, unified system of thought but a family of related philosophical positions united by a cluster of characteristic concerns: the primacy of individual existence over abstract essence, radical human freedom and the responsibility it entails, the confrontation with meaninglessness and anxiety, and the challenge of creating authentic values in a world that offers no pre-given moral framework. The term was coined in the mid-20th century and is most closely associated with French philosopher Jean-Paul Sartre, who accepted it as an accurate description of his own philosophy, though many thinkers commonly labeled "existentialist" — including Albert Camus and Martin Heidegger — rejected the label.

What distinguishes existentialist thought most sharply from prior Western philosophy is its starting point. Traditional philosophy, from Plato and Aristotle through the medieval scholastics, began with the concept of essence — the defining nature or purpose of a thing — and derived from it an account of what that thing should be. Existentialism reverses this: for human beings, existence precedes essence. We are thrown into the world without a pre-given nature or purpose; we must create ourselves through our choices. This is simultaneously a claim of radical freedom and radical responsibility that both exhilarates and terrifies.

Kierkegaard: The Existentialist Precursor

Soren Kierkegaard (1813–1855), the Danish philosopher and theologian, is generally regarded as the forefather of existentialism, though he predates the movement by nearly a century. Kierkegaard reacted against the systematic philosophy of Hegel, which he felt dissolved the particular individual — the suffering, choosing, anxious human being — into abstract universal categories. Philosophy, Kierkegaard insisted, must start from the existing individual, not from abstract systems.

Kierkegaard described three "stages" or modes of existence: the aesthetic (living for immediate pleasure and sensation), the ethical (living according to rational duty and social norms), and the religious (a personal, passionate relationship with God that transcends rational ethics). His concept of anxiety — the "dizziness of freedom" that comes from recognizing that one must choose without certainty — influenced virtually every later existentialist. His insistence that subjectivity, personal commitment, and passionate engagement are more important than detached objectivity in matters of ultimate concern resonated powerfully with thinkers facing the crises of the 20th century.

Sartre: Existence Precedes Essence and Radical Freedom

Jean-Paul Sartre (1905–1980) gave existentialism its most systematic philosophical expression. His magnum opus Being and Nothingness (1943), written partly while Paris was under Nazi occupation, developed a detailed phenomenological ontology distinguishing "being-in-itself" (the mode of existence of non-conscious objects, which simply are what they are) from "being-for-itself" (the mode of existence of conscious beings, which are always projecting themselves toward future possibilities and are therefore never simply what they are). Human consciousness is characterized by "nothingness" — the capacity to negate what is, to imagine what is not, to be otherwise. This is the root of freedom: we are always free because we are never determined by our past or present.

Sartre's famous lecture "Existentialism Is a Humanism" (1945) popularized his ideas for a mass audience. His central claims: we are "condemned to be free" — we cannot escape choosing, even choosing not to choose is a choice; "existence precedes essence" — there is no pre-given human nature; and "bad faith" (mauvaise foi) — the attempt to flee from freedom by pretending to be determined, to be playing a role, to have a fixed nature — is the fundamental form of human self-deception. The waiter who is "too much" a waiter, performing his role with exaggerated precision to avoid the unsettling awareness that he could always be otherwise, is Sartre's famous example of bad faith. Authentic existence requires acknowledging one's freedom and taking full responsibility for one's choices.

Camus and the Absurd

Albert Camus (1913–1960) is often grouped with the existentialists but rejected the label, partly because he was unwilling to accept Sartre's systematic philosophical framework and partly because he found existentialist responses to the absurd unsatisfying. For Camus, the fundamental human situation is the confrontation between our deep need for meaning, clarity, and purpose, and the world's total silence in response to that need. The world is neither meaningful nor meaningless — it is simply indifferent. The absurd arises in the collision between our longing and the world's silence.

Camus explored the implications of the absurd through his novels — The Stranger (1942), The Plague (1947), The Fall (1956) — and his philosophical essays The Myth of Sisyphus (1942) and The Rebel (1951). In The Myth of Sisyphus he poses what he calls "the only truly serious philosophical problem" — suicide. If life is absurd, if it has no inherent meaning, why continue living? Camus's answer is that we must imagine Sisyphus happy: we should neither deny the absurd (by escaping into religion or ideology) nor succumb to it (by suicide), but live in full awareness of it with defiance, passion, and freedom. This affirmation of life in the face of acknowledged meaninglessness is the core of Camusian ethics, and it runs through his later work on political rebellion as a response to injustice.

Simone de Beauvoir: Existentialism and Feminism

Simone de Beauvoir (1908–1986) was both a philosopher in her own right and the most important feminist philosopher of the 20th century. Her The Second Sex (1949) applied existentialist analysis to the situation of women with devastating effect. De Beauvoir argued that woman has been defined by men as "the Other" — the negative pole against which masculine subjectivity defines itself — and that this definition has been internalized by women to the point where they often collude in their own oppression. Woman is not born but made: the characteristics attributed to femininity are not natural but constructed through socialization, and their purpose is to maintain the subordination of women.

De Beauvoir's application of Sartrean concepts — freedom, authenticity, bad faith, the look — to social analysis was genuinely original and immensely productive. She showed how social structures, not just individual psychological self-deception, could trap people in bad faith. The Second Sex initiated second-wave feminism and remains one of the most important books of the 20th century. Her other works — The Ethics of Ambiguity (1947), her autobiography in multiple volumes — demonstrate a philosophical sophistication and a commitment to thinking through the implications of freedom in actual social conditions that complements and sometimes corrects Sartre's more abstractly systematic approach.

Existentialism's Lasting Influence

Existentialism's peak period as a distinctive philosophical movement was roughly 1940 to 1970, after which academic philosophy moved in other directions and Sartre's influence in particular waned. Yet existentialist themes have proven remarkably durable. In psychology, existential therapy — associated with Rollo May, Irvin Yalom, and others — draws directly on existentialist concepts of freedom, responsibility, death anxiety, and meaning to develop a therapeutic approach focused on the ultimate concerns of human existence rather than symptom relief alone. Viktor Frankl's logotherapy, developed in response to his experience in Nazi concentration camps and described in Man's Search for Meaning (1946), is existentialist in its core claim that meaning, not pleasure or power, is the fundamental human motivation.

In literature and culture, existentialist themes — alienation, authenticity, the burden of freedom, confrontation with death and meaninglessness — have become part of the standard vocabulary of serious fiction, film, and personal reflection. The questions that existentialists posed with philosophical rigor are ones that thoughtful people face in their own lives: What am I responsible for? How should I live given that death is certain and meaning is not given? What makes a life authentic? These are not merely academic questions, and the existentialists' insistence on confronting them honestly, without comforting illusions, remains one of their great intellectual virtues.