"...Mathematical truth is immutable,it lies outside physical reality. When we show, for example, that two nth powers never add to an nth power for n > 3 we have discovered a Truth. This is our belief, this is our core motivating forcé. Yet our attempts to describe this belief to our nonmathematical friends are akin to describing the Almighty to an atheist ..."
(Joel Spencer in his "Uncle Paul" speech)