Twilight of the Idols, or How to Philosophize with a Hammer ( Götzendammerung, oder: Wie man mit dem Hammer philosophirt , 1889), was one of the last two philosophical works (the other being The Anti-Christ ) written by Friedrich Nietzsche at lightning speed (he completed it in a week) before he succumbed to insanity the following year. By this time Nietzsche had already established a name for himself with Thus Spoke Zarathustra in Europe’s literary-philosophical enclaves, though his incorrigible cynicism made him believe that most readers had not adequately grasped the work. In order to rectify the situation, he felt he had to simplify its main ideas and present them in a more digestible format à la Cliff Notes. The result is Twilight of the Idols , a summary of sorts of the philosophical thoughts that had preoccupied him all his life. But the book, furious and acerbic in tone, is also something else: it functions as a metaphorical hammer that seeks to destroy everything that...