Beyond Good and Evil: Prelude to a Philosophy of the Future is a book by philosopher Friedrich Nietzsche, first published in 1886. It draws on and expands the ideas of his previous work, Thus Spoke Zarathustra, but with a more critical and polemical approach. In Beyond Good and Evil, Nietzsche accuses past philosophers of lacking critical sense and blindly accepting dogmatic premises in their consideration of morality. Specifically, he accuses them of founding grand metaphysical systems upon the faith that the good man is the opposite of the evil man, rather than just a different expression of the same basic impulses that find more direct expression in the evil man.