'Niels Bohr, who gave the right answer to Einstein's "God doesn't play dice" ("Don't tell God what to do!"), also provided the perfect example of how fetishist disavowal of belief works in ideology: at seeing a horse-shoe on his door, a surprised visitor told the physicist that he didn't believe in the superstition that it brought luck, to which Bohr snapped back: "I also do not believe in it; I have it there because I was told that it still works if one does not believe in it!" What this paradox renders clear is the way a belief is a reflexive attitude: it is never a case of simply believing - one has to believe in belief itself. Which is why Kierkegaard was right to claim that we do not really believe (in Christ), we just believe in our belief - and Bohr just confronts us with the logical negative of this reflexivity (one can also NOT believe one's beliefs...)'(Slavoj Žižek, The Parallax View)
