Horseshoe Luck

Somebody once asked Niels Bohr why he had a horseshoe hanging above the front door of his house."Surely you, a world famous physicist, can't really believe that hanging a horseshoe above your door brings you luck?"."Of course not," Bohr replied, "but I have been reliably informed that it will bring me luck whether I believe in it or not." - Neils Bohr



Circular logic?