Kierkegaard — Anxiety and Existence

Core Idea

Soren Kierkegaard is often considered the first existentialist, though he predated the movement by a century. Writing against Hegel's rationalist system, Kierkegaard argued that the most important questions of human existence — how to live, what to commit to, how to face death — cannot be resolved by abstract reasoning. His key concepts include anxiety (Angst) as the "dizziness of freedom," the three stages of existence (aesthetic, ethical, religious), and the "leap of faith" as a choice that transcends rational justification. For Kierkegaard, truth is not an objective proposition but a subjective relationship: "truth is subjectivity."

Explainer

Kierkegaard wrote in the 1840s, a generation before Nietzsche and nearly a century before Sartre, yet his concerns anticipate the entire existentialist tradition. His target was the dominant philosophy of his era: Hegel's absolute idealism, which claimed to comprehend all of reality — nature, history, religion, art — within a single rational system. Kierkegaard's objection was not technical but personal: even if Hegel's system were true, it would not help an individual person decide how to live. The system explains everything except the one thing that matters — what it means to exist as this particular person, here and now, facing choices that no abstract formula can resolve.

Anxiety (Angst) is Kierkegaard's name for the mood that reveals our fundamental situation. Unlike fear, which has a definite object, anxiety is directed at nothing specific — it is the awareness of pure possibility, the "dizziness" that comes from looking into the open future and recognizing that we are free. A person standing on the edge of a cliff feels two things: the fear of falling (which has a definite object) and something stranger — the anxiety of knowing that nothing prevents them from jumping. That second feeling, the awareness that one *could* choose anything, is what Kierkegaard means by the anxiety of freedom. It reveals that we are not determined beings following a script but radically open beings who must decide.

Kierkegaard mapped three fundamental modes of existence: the aesthetic, the ethical, and the religious. The aesthetic individual lives for immediate experience — pleasure, novelty, artistic sensation. The trouble is that immediacy eventually exhausts itself: the aesthete becomes bored, and boredom curdles into despair. The ethical individual responds by making commitments — marriage, duty, moral law — that give life structure and meaning. But the ethical stage has its own limit: it relies on universal rules that cannot account for the radical particularity of individual existence. Kierkegaard's most famous example is Abraham, commanded by God to sacrifice Isaac. No universal moral law can justify this; Abraham must make a solitary decision that transcends ethics. This is the leap of faith — not irrational but trans-rational, a commitment that cannot be supported by evidence or argument but must be made in passionate inwardness.

The phrase "truth is subjectivity" crystallizes Kierkegaard's challenge to the philosophical tradition. He is not claiming that facts are matters of opinion. He is claiming that the truths most relevant to human existence — what to live for, what to stake one's life on — are not the kind of truths that can be grasped through detached, objective inquiry. They require *appropriation*: taking a truth into oneself so that it transforms how one exists. Christianity, for Kierkegaard, is not a set of doctrines to be believed but a way of existing to be enacted. This emphasis on the individual, on passionate commitment, and on the irreducibility of personal existence to abstract systems would become the foundation of the existentialist tradition that followed.