Once you've ruled out the impossible then whatever is left, however improbable, must be the truth. The problem lay in working out what was impossible, of course. That was the trick, all right. There was also the curious incident of the orangutan in the night-time.
Terry PratchettHe stared at his feet. “I’m still very ignorant,” he said, “but at least I’m ignorant about really important things.
Terry PratchettGranny Weatherwax, who had walked nightly without fear in the bandit-haunted forests of the mountains all her life in the certain knowledge that the darkness held nothing more terrible than she was.
Terry Pratchett