Friedrich Wilhelm Nietzsche was a 19th-century German philosopher and classical philologist. He wrote critical texts on religion, morality, contemporary culture, philosophy and science, using a distinctive rhetorical and evocative style, displaying a fondness for metaphor, irony and aphorism. Nietzsche’s influence remains substantial within and beyond philosophy, notably in existentialism and post-modernism. His style and radical questioning of the value and objectivity of truth have resulted in much commentary and interpretation, mostly in the continental tradition. His key ideas include the death of God, perspectivism, the Übermensch, the eternal recurrence, and the will to power. (source: Wikipedia)