A priest and an astronomer find themselves sitting together on a night flight. After introductions and a long gaze out the window, the astronomer asks the priest, "Can't all religions be summed up by stating the Golden Rule?" The priest pauses a bit and asks the astronomer, "Can't all astronomy be summed up by singing ‘Twinkle, Twinkle, Little Star’?” - Joke shared by Beliefnet member Pthalo