Friedrich Wilhelm Nietzsche (/ˈniːtʃə/ or /ˈniːtʃi/; German: [ˈfʁiːdʁɪç ˈvɪlhɛlm ˈniːt͡sʃə]; 15 October 1844 – 25 August 1900) was a German philosopher, cultural critic, poet, composer and Latin and Greek scholar. He wrote several critical texts on religion, morality, contemporary culture, philosophy and science, displaying a fondness for metaphor and irony.
Nietzsche's key ideas include perspectivism, the will to power, the death of God, the Übermensch and eternal recurrence. One of the key tenets of his philosophy is "life-affirmation", which embraces the realities of the world in which we live over the idea of a world beyond. It further champions the creative powers of the individual to strive beyond social, cultural, and moral contexts. Nietzsche's attitude towards religion and morality was marked with atheism, psychologism and historism; he considered them to be human creations loaded with the error of confusing cause and effect. His radical questioning of the value and objectivity of truth has been the focus of extensive commentary, and his influence remains substantial, especially in schools of continental philosophy such as existentialism, postmodernism, and post-structuralism. His ideas of individual overcoming and transcendence beyond structure and context have had a profound impact on late-twentieth and early-twenty-first century thinkers, who have used these concepts as points of departure in the development of their philosophies.
Nietzsche began his career as a classical philologist—a scholar of Greek and Roman textual criticism—before turning to philosophy. In 1869, at age 24, he became the youngest-ever occupant of the Chair of Classical Philology at the University of Basel. He resigned in 1879 due to health problems that plagued him most of his life. In 1889, at age 44, he suffered a collapse and a complete loss of his mental faculties. The breakdown was later ascribed to atypical general paresis due to tertiary syphilis, but this diagnosis has come into question. Re-examination of Nietzsche's medical evaluation papers show that he almost certainly died of brain cancer. Nietzsche lived his remaining years in the care of his mother (until her death in 1897) and then his sister Elisabeth Förster-Nietzsche. He died in 1900 following a stroke.