"Then Moses answered and said, 'But suppose they will not believe me or listen to my voice; suppose they say, "The LORD has not appeared to you."' So the LORD said to him, 'What is that in your hand?' And he said, 'A rod.'"1 I have read how a boy who loved to listen to music was bitterly disappointed because he could neither play nor sing. But a kindly gentleman encouraged him with these words: "There are many ways of making music. What matters is the song in your heart." That boy—Antonio Stradivarius—took the man at his word and became the world's greatest violin maker. I also read about "a well-dressed European woman on safari in Africa . The group stopped briefly at a hospital for lepers. The heat was intense, the flies buzzing. She noticed a nurse bending down in the dirt, tending to the pus-filled sores of a leper. "With disdain the woman remarked, 'Why, I wouldn't do that for all the money in the world!...