Friedrich Nietzsche was a German philosopher, cultural critic, composer, poet, philologist, and Latin and Greek scholar whose work has exerted a profound influence on modern intellectual history. He began his career as a classical philologist before turning to philosophy. He became the youngest ever to hold the Chair of Classical Philology at the University of Basel in 1869 at the age of 24. Nietzsche resigned in 1879 due to health problems that plagued him most of his life; he completed much of his core writing in the following decade. In 1889, at age 44, he suffered a collapse and afterward a complete loss of his mental faculties. He lived his remaining years in the care of his mother until her death in 1897 and then with his sister Elisabeth Förster-Nietzsche. Nietzsche died in 1900.
His inaugural lecture at the university was "Homer and Classical Philology". A trained philologist, Nietzsche had a thorough knowledge of Greek philosophy. He read Kant, Plato, Mill, Schopenhauer and Spir, who became his main opponents in his philosophy, and later Baruch Spinoza, whom he saw as his "precursor" in many respects but as a personification of the "ascetic ideal" in others. However, Nietzsche referred to Kant as a "moral fanatic", Plato as "boring", Mill as a "blockhead", and of Spinoza he said: "How much of personal timidity and vulnerability does this masquerade of a sickly recluse betray?" He likewise expressed contempt for British author George Eliot.