The following is the conclusion of the essay "Science and Religion" by Werner Heisenberg (1927). There is a chance that Heisenberg wouldn't object to reproducing it. Niels closed the conversation with one of those stories he liked to tell on such occasions: "One of our neighbors in Tisvilde once fixed a horseshoe over the door to his house. When a common friend asked him, `But are you really superstitious? Do you honestly believe that this horseshoe will bring you luck?' he replied, `Of course not; but they say it works even if you don't believe in it.'"
(From the "Rest" of RHF)