I read somewhere about an astronomer and a pastor who were seated next to one another on an airplane flight. When they became aware of their vocations, the astronomer said, "I believe that religion can be summed up in the words, "Do unto others as you would have them do unto you." "Yes," said the pastor, "about as much as astronomy can be summed up in the words, "Twinkle, twinkle little star, how I wonder what you are." No, there is more to it than ethics.