It says here:
When Nietzsche lost his faith, he concluded that God is dead. This is not critical thinking. This is narcissism. I understand the idea that if God exists, then you must believe in Him. I do not understand the idea that if you do not believe in Him, then God must not exist.
—Leon Wieseltier, Kaddish, Alfred A. Knopf, New York, 1999, page 123.