Task: Text Categorization
Input (English): This author discusses how the concept of "leaf" is a mere approximation, and the concept of "honesty" is even more so, in a work that claims "every word immediately becomes a concept." In one of his works, this author of "On Truth and Lies in a Nonmoral Sense" discusses the Apollonian and Dionysian dichotomy to describe how a dramatic genre came into existence. In another work, he created a character named the Madman who proclaims, "God is dead." For 10 points, name this author of The Gay Science, The Birth of Tragedy, and Beyond Good and Evil.
Output (English): Social Science