Beyond Good and Evil (German: Jenseits von Gut und Bose), subtitled "e;Prelude to a Philosophy of the Future"e; (Vorspiel einer Philosophie der Zukunft), is a book by the German philosopher Friedrich Nietzsche, first published in 1886. It takes up and expands on the ideas of his previous work, Thus Spoke Zarathustra, but approached from a more critical, polemical direction. In Beyond Good ...