In 1869, Nietzsche took a position as professor of classical philology at the University of Basel in Switzerland. During his professorship he published his first books, The Birth of Tragedy (1872) and Human, All Too Human (1878). He also began to distance himself from classical scholarship, as well as the teachings of Schopenhauer, and to take more interest in the values underlying modern-day civilization. By this time, his friendship with Wagner had deteriorated. Suffering from a nervous disorder, he resigned from his post at Basel in 1879.
Pre-Christian (., pagan) societies and philosophies were like virgins. Post-Christian (., modern) societies and philosophies are like divorcees. Nietzsche is no pagan pre-Christian, but the essential, modern post-Christian and anti-Christian. He rightly saw Christ as his chief enemy and rival. The spirit of Anti-Christ has never received such complete formulation. Nietzsche was not only the favorite philosopher of Nazi Germany, he is the favorite philosopher of hell.