The greatest mystery the universe offers is not life but size. Size encompasses life […]. THe child, who is most in home at wonder, says: Daddy, what is above the sky? And the father says: The darkness of space. The child: What is beyond space? The father: The galaxy. The child: Beyond the galaxy? The father: Another galaxy. The child: Beyond the other galaxies? The father: No one knows. You see? Size defeats us.