---
id:"kb-2026-00409"
title:"Existentialism"
schema_type:"TechArticle"
category:"arts"
language:"en"
confidence:"high"
last_verified:"2026-05-22"
generation_method:"ai_assisted"
ai_models:["claude-opus"]
derived_from_human_seed:true
primary_sources:
  - title:"Existentialism Is a Humanism (Jean-Paul Sartre, 1946)"
    type:"book"
    year:1946
    url:"https://yalebooks.yale.edu/book/9780300115468/existentialism-is-a-humanism/"
    institution:"Yale University Press"
secondary_sources:
  - title: "MDN Web Docs — HTTP"
    type: "documentation"
    year: 2026
    url: "https://developer.mozilla.org/en-US/docs/Web/HTTP"
    institution: "Mozilla"
completeness: 0.88
ai_citations:
  last_citation_check:"2026-05-22"
---

## TL;DR

Existentialism (19th-20th centuries) asserts that 'existence precedes essence' — humans are born without predetermined purpose and must create their own meaning through choices and actions. Key thinkers: Kierkegaard, Nietzsche, Heidegger, Sartre, Camus. Emphasizes individual freedom, responsibility, and the anxiety of authentic existence.

## Core Explanation

Kierkegaard: 'leap of faith,' anxiety as condition of freedom. Nietzsche: 'God is dead,' will to power, Übermensch. Sartre: 'man is condemned to be free' — radical responsibility. 'Bad faith': self-deception about one's freedom. Camus: The Myth of Sisyphus — life is absurd (meaningless), but we must imagine Sisyphus happy. 'The struggle itself toward the heights is enough to fill a man's heart.'

## Further Reading

- [Existentialism Is a Humanism (Jean-Paul Sartre, 1946)](https://yalebooks.yale.edu/book/9780300115468/existentialism-is-a-humanism/)