The Ghost of RubangB on 17 October 2008
But Nietzsche questioned everything INCLUDING himself. The only truth he could have claimed was "You should question everything including yourself." But even then he'd want you to question him and maybe you shouldn't question yourself, you should just question Nietzsche.
Basically, he was a philosophy addict who kept trying to quit. He kept preaching about how much philosophy was bullshit, but he couldn't stop philosophizing. He was hooked.
