One day a rabbi looked out upon the marketplace. Everyone was hurrying through the marketplace attending to his or her particular business. Suddenly the rabbi saw a familiar face. “Moshe, come in, I want to speak with you.” “Shalom Rabbi, how are you?” “Thank God, I am fine. Tell me, Moshe, what were you doing in the marketplace?” “Oh, I’m very busy. I have a lot of business to take care of.” “ Moshe,” asked the rabbi, “Have you looked up at the sky today?” “At the sky, Rabbi? No, of course not. I’m too busy to look at the sky.” “Moshe, look out the window and tell me what you see.” “I see people and horses and carriages, all rushing around doing business.” “Moshe, in fifty years there will be other people in other carriages, drawn by other horses, and we will no longer be here. And, Moshe, in a hundred years, neither the marketplace nor this town will even exist. Look at the sky, Moshe, look at the sky!”