I have always been so sure - too sure... But now I am very humble and I say like a little child: "I do not know..."
Agatha ChristieNobody believes in magicians any more, nobody believes that anyone can come along and wave a wand and turn you into a frog. But if you read in the paper that by injecting certain glands scientists can alter your vital tissues and you'll develop froglike characteristics, well, everybody would believe that.
Agatha Christie