Existence Precedes Essence: What Sartre Actually Meant by It

A paper-knife exists because someone first decided what a paper-knife is for. Its purpose came before the object — drawn up in a workshop, then forged to match. Jean-Paul Sartre’s most famous three words say that you are the one thing in the universe for which this is not true. “Existence precedes essence” means you exist first, as a person with no built-in purpose, and only afterwards make yourself into something through what you choose and do. There is no design you were forged to fulfil. The self is not discovered. It is assembled, by you, in the act of living — and that, Sartre argued, is both the whole of your freedom and the source of a particular kind of dread.

Most people meet the phrase as a slogan and walk away with the wrong half of it. They hear “make your own meaning” and file it next to every motivational poster they have ever ignored. But the slogan flattens the actual claim, which is stranger and more demanding than a pep talk. It is a precise statement about the order of operations in a human life — and once you see the order clearly, a lot of modern misery starts to make sense.

What “existence precedes essence” actually means

Strip it to one sentence: for a human being, there is no fixed nature handed to you in advance that you are obliged to express. You turn up first — alive, conscious, situated somewhere — and the question of what you are stays open, answered only by the accumulating record of what you do.

Sartre’s contrast is with manufactured things. A letter-opener has an essence before it has existence: the idea of it, its function, its specifications, all precede the metal. You cannot say the same about a person. No one drew up your specification. You were not issued with a function the way a tool is. You are, in Sartre’s phrase, “condemned” to work out what you are by living it.

This is why the popular reading — “life is meaningless, so invent your own meaning” — misses the mark. Sartre is not saying the universe is empty and you should cheer yourself up by pretending otherwise. He is making a sharper claim: that the very thing you keep waiting to find — your true self, your real calling, the person you were always meant to be — does not exist yet, because it is not the kind of thing that pre-exists. It is the sum of your choices, and it is still being written.

The opposite view: when essence really does come first

To feel the force of Sartre’s claim, you have to take the opposite claim seriously — because for most of Western history, the opposite is what people believed.

Consider how a paper-knife comes to be. An artisan holds a concept: a tool for cutting paper, this length, this edge. The concept dictates the object. The essence — what the knife is for — exists fully before any particular knife does. Aristotle thought living things worked broadly this way too: each has an ergon, a function it exists to fulfil, the way an eye exists for seeing. And when later Christian thinkers like Thomas Aquinas pictured God as a kind of supreme craftsman, the human being became the ultimate designed object — made to a divine specification, with a purpose stamped in before birth. On that view, essence precedes existence for you as surely as it does for the knife. Your job is to discover the design and live up to it.

Sartre’s atheism is doing real work here, and it is worth being honest about that. Remove the craftsman, he argues, and you remove the blueprint. There is no designer, so there is no design; no specification, so no fixed human nature you are obliged to match. What is left is the bare fact of existing, and the lifelong task of making something of it. The inversion is total: the one creature with no pre-set essence is the one creature that has to author its own.

Who said it, and where

The three words belong to Sartre, and they crystallise a much larger argument he had already worked out in dense form. The idea is developed across his 1943 book Being and Nothingness — a forbidding, technical work that most people quote and few finish. The clean formula that made it famous comes from a public lecture he gave in 1945, published in 1946 as Existentialism Is a Humanism. There, defending existentialism against the charge that it was merely gloomy, Sartre laid the principle out plainly: man “first of all exists, encounters himself, surges up in the world — and defines himself afterwards.”

That single line is the doctrine in motion. Exists first. Defines himself second. The famous three-word version is just the compression of it.

The lecture matters because it is where Sartre tried to make the idea liveable rather than only logical. He was not describing a curiosity of metaphysics. He was telling an audience, in the rubble of a war that had made a mockery of inherited certainties, that they could no longer outsource the question of who they were — not to God, not to human nature, not to anyone.

Did Kierkegaard get there first?

Sartre named the principle, but he did not invent the intuition behind it. A century earlier, the Danish thinker Søren Kierkegaard had already insisted that a self is not a fixed thing you are born holding but a task you have to take up — something achieved, or failed, in how you live. Kierkegaard reached this as a devout Christian, which makes him an awkward ancestor: he would not have signed Sartre’s atheism, and he kept God firmly in the picture. But the structural move — that a human being has to become a self rather than simply be one — is recognisably the same nerve Sartre later struck.

The lineage runs through others too. Friedrich Nietzsche’s “become who you are” presses in the same direction; Martin Heidegger, whose work Sartre read closely, treated human existence as something defined by its possibilities rather than any fixed essence. Sartre’s contribution was less the raw idea than the blade he ground it into: three words, no God, no hedging.

Does this mean life is meaningless?

This is where the doctrine gets mistaken for its opposite, so it is worth being exact. “Existence precedes essence” is not nihilism. Nihilism says there is no meaning and there can be none — the matter is closed. Sartre says almost the reverse: there is no meaning handed to you, which is precisely why meaning is yours to make, and why your choices carry a weight they could never carry if the answer were fixed in advance. (If the line between the two still feels blurry, it is worth seeing why Sartre’s position is not the same as concluding life is meaningless.)

The difference is the difference between an empty page and a sealed one. The nihilist is staring at a page that can hold no writing. Sartre hands you a blank one and says: this is yours, no one will fill it for you, and you cannot give it back. That is not the absence of meaning. It is meaning made unbearable by being entirely your responsibility.

If anything, Sartre asks more of you than the believer does. The believer has a script to follow and can fail or succeed against it. Sartre gives you no script and tells you the writing is happening anyway, with every choice, whether you attend to it or not.

Why Sartre says you are “condemned to be free”

The word he chose was condemned, not blessed, and the choice is deliberate. Freedom, in Sartre’s hands, is not a holiday. It is a sentence.

If there is no fixed human nature, then there is no rulebook to defer to and no authority that can take the decision off your hands. Every significant choice is yours, unsupported, and the responsibility lands on you alone — not just for the choice but, Sartre says, for the picture of a worthwhile life it implies. You cannot plead that you were only following your nature, because you have none of the kind that would let you off. This is the origin of the anguish existentialists keep talking about: not a clinical anxiety, but the specific vertigo of standing in front of a genuinely open choice and knowing there is no one to blame for it but you. It is also the exact feeling behind a decision you can’t seem to make.

Most of the time we hide from this. And the way we hide is itself the most useful idea Sartre gives us.

Waiting to “find yourself” is what Sartre called bad faith

Here is the move that turns a piece of French metaphysics into something that describes your Tuesday.

Sartre had a name for the self-deception we use to dodge our own freedom: bad faith — mauvaise foi. Bad faith is pretending to yourself that you are a fixed thing, with a fixed nature, so that you do not have to face the fact that you are choosing. The waiter who plays at being a waiter so completely that he never has to decide anything; the person who says “that’s just how I am” to close down a choice they would rather not make — both are in bad faith. They are treating a person, who is free, as if they were a paper-knife, whose essence is settled.

And the most common form of bad faith in modern life has a friendly face. It is the belief that somewhere inside you there is a true self waiting to be discovered — a real calling, an authentic purpose — and that your job is to search until you find it. It sounds like the opposite of avoidance. It feels like seriousness. But look at what it actually does: it relocates the authorship of your life into a fixed essence you are merely uncovering, which means you never have to admit that you are the one choosing. “I’m still figuring out who I am” can be honest. It can also be the most respectable way there is to not decide.

Take a specific case. Someone stays in a job they have outgrown for three more years, and tells themselves they are waiting until they “figure out what they really want to do.” The waiting feels responsible — prudent, even. But in Sartre’s terms it is bad faith wearing the mask of patience. There is no hidden true vocation that will surface and settle the matter. There is only the choice they are declining to make, dressed up as a discovery they are still awaiting. The self they keep looking for is not lost. It has not been written yet, because they have not written it.

You are not waiting to find out who you are. You are deciding it, with every choice you postpone and every choice you make.

This is the reframe the slogans skip. “Find yourself” quietly assumes essence precedes existence — that the self is already there, complete, hidden. Sartre’s whole point is that it is the other way round. There is nothing to find. There is only what you make. It is the same nerve Camus pressed from the other side with the myth of Sisyphus — meaning made, not found.

What it actually costs to live this — and how to carry it

It would be dishonest to end on the liberation and leave out the bill, because Sartre never pretended there wasn’t one. Living as though existence precedes essence is not the easy, affirming thing the motivational version implies. It is harder than waiting.

The cost is threefold, and worth naming plainly. First, the anxiety does not go away — it is the permanent background of taking your choices seriously, the vertigo of the open page, and Sartre thought trying to eliminate it was just another flight into bad faith. Second, you lose your excuses. Every “I had no choice,” every “it’s just who I am,” is gone; the responsibility is yours and stays yours. Third, there is a real social cost. Choosing against the expected script — the career, the timeline, the life others assumed you would assemble — means disappointing people who were counting on the version of you that did what it was told. People who genuinely refuse bad faith often report exactly this: that the world is not neutral about those who insist on authoring their own lives.

So how do you actually carry it, rather than just admire it on a page? Not with a system — Sartre would have distrusted a five-step method as one more way of pretending the choosing is done for you. But the doctrine does imply a discipline, and it is a quieter one than the slogans suggest.

Stop auditioning explanations of who you “really” are, and start watching what you actually choose, because that is the only honest record of it. When you catch yourself saying “that’s just how I am,” treat it as a flag, not a fact — it is usually a decision in disguise. And when you find yourself waiting to feel certain before you act, notice that the certainty is not coming, because it was never the kind of thing that arrives in advance; the self is built in the choosing, not before it. The work is daily, slightly anxious, and never finished. That is not a flaw in the method. According to Sartre, that is what being a person is.

It is worth saying that the ancients would have argued with him, and the argument is a good one — this is, after all, one of the oldest fault lines in how we think about meaning and purpose. The Stoics held almost the reverse: that you do have a fixed rational nature, a telos, and the task is to fulfil it rather than invent one from nothing. (It is a close cousin of the line that separates existentialism from absurdism — whether meaning is built, found, or finally set aside.) And yet even there the two traditions brush against each other in a way that is easy to miss. Epictetus insisted that a person is “improved and preserved by corresponding acts” — that you become just by doing just things — and Aristotle had said long before that we are not born holding the virtues but acquire them only by repeatedly acting them out. The Stoic nature, in other words, is not a finished essence either; it is a potential that stays inert until your choices make it real. Sartre would remove the nature and keep only the choosing. The Stoics kept the nature but agreed it lives or dies in what you do. Both, in the end, hand you the same uncomfortable truth: whatever you are going to be, you are going to have to make it.