A Russian cosmonaut and a Russian brain surgeon were once discussing Christianity. The brain surgeon was a Christian, but the cosmonaut wasnโt. โI have been in outer space many times,โ bragged the cosmonaut, โbut I have never seen any angels.โ The brain surgeon stared in amazement, but then he said, โAnd I have operated on many intelligent brains, but I have never seen a single thought.
Jostein GaarderWhere both reason and experience fall short, there occurs a vacuum that can be filled by faith.
Jostein GaarderAnd although I have seen nothing but black crows in my life, it doesn't mean that there's no such thing as a white crow. Both for a philosopher and for a scientist it can be important not to reject the possibility of finding a white crow. You might almost say that hunting for 'the white crow' is science's principal task.
Jostein Gaarder