The Case Against Wagner was one Nietzsche’s last books, and his wittiest. In Wagner’s music, in his doctrine, in his whole concept of art, Nietzsche saw the confirmation, the promotion, even the encouragement, of that decadence and degeneration which is now rampant in Europe; and it is for this reason, although to the end of his life he still loved Wagner, the man and the friend, that we find him, on the very eve of his spiritual death, exhorting us to abjure Wagner the musician and the artist.