The Death Wisdom of Friedrich Nietzsche

Would he be better off not having to worry about the fact that he was one day going to die? That is the greatest error ever committed. Believing that in the forms of reason we had in our possession a criterion of reality. Whereas we had them in order to gain mastery over reality, and behold the world became false precisely because of the qualities which constitute its reality. It's a double edged sword. This death wisdom doesn't necessarily make us wise.