The German philosopher whose radical critique of morality, religion, and truth — developed in works including Thus Spoke Zarathustra, Beyond Good and Evil, and On the Genealogy of Morality — declared the death of God, introduced the concepts of the will to power, eternal recurrence, and the Übermensch, and became one of the most influential and most misappropriated thinkers in modern history.
Nietzsche wrote: 'God is dead. God remains dead. And we have killed him.' He was not celebrating. He was diagnosing a crisis: European civilization had built its moral framework on Christian metaphysics, and now that the intellectual foundations of Christianity had collapsed — through science, through historical criticism, through Darwinism — the entire moral structure built on top of it was collapsing too. The question Nietzsche spent his career asking is: what happens to human beings when they no longer believe their suffering has cosmic meaning? His answer was either terrifying or liberating, depending on who was reading.