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Unpacking Sartre’s Principle: Existence Before Essence

Created at: July 30, 2025

Existence precedes essence. — Jean-Paul Sartre
Existence precedes essence. — Jean-Paul Sartre

Existence precedes essence. — Jean-Paul Sartre

Origins of Sartre’s Existential Claim

Jean-Paul Sartre’s famous dictum, “Existence precedes essence,” emerged in the wake of World War II, crystallizing the core of existentialist thought. Presented in his 1946 lecture “Existentialism Is a Humanism,” Sartre challenged centuries of philosophical tradition that posited a fixed human nature. By arguing that people exist first—without predetermined purpose or definition—before shaping their own identities, Sartre offered a radical response to both religious and rationalist philosophies.

Philosophical Reversal of Tradition

Prior to existentialism, thinkers like Aristotle and Thomas Aquinas believed that an object’s essence—its defining purpose—was established before its existence. For example, a craftsman designs a paper cutter with a specific function in mind, and only then is the cutter made to fulfill that purpose. Sartre flipped this model for human beings, insisting that we come into the world as blank slates, writing our own scripts through choices and actions.

Freedom and Responsibility in Self-Creation

Transitioning from this reversal, Sartre connected the absence of predetermined essence with radical freedom. Since humans have no given blueprint, we are thrust into the responsibility of inventing ourselves. This freedom is exhilarating yet daunting: as Sartre notes, we are ‘condemned to be free.’ Every decision—from career to relationships—reflects our continuous act of self-definition, for better or worse.

Consequences for Morality and Authenticity

With this freedom comes the weight of authenticity. Sartre’s philosophy discards the idea that morality is dictated by universal principles, instead asserting that values are self-chosen and must be lived out genuinely. This echoes Dostoevsky’s earlier musings in ‘The Brothers Karamazov’ (1880), where, absent God, everything is permitted—yet for Sartre, this does not mean nihilism but an imperative to act sincerely, fully owning the consequences of our choices.

Legacy in Contemporary Thought and Culture

Finally, Sartre’s insight continues to inspire debates about identity and purpose. Modern psychology’s emphasis on self-actualization and movements for personal autonomy reflect existentialist undercurrents. Writers, artists, and activists alike echo Sartre’s conclusion: existence, uncertain and provisional, compels each of us to define our unique essence through authentic living. Thus, his existential proposition remains a living challenge in today’s search for meaning.