One day a doctor said to the boy's father that he could graft a pair of ears for his son, if they could be offered. Two years went by. Then, "You are going to the hospital, son. Mother and I have someone who will _ the ears you need. But it's a secret," said the father. The operation was a brilliant success. Later the boy married and entered the diplomatic service . "But I must know who gave so much to me. I could never do enough for him." "But the agreement was that you are not to know... not yet," said the father. The years kept their secret, but the day did come... one of the darkest days that ever passed through his son. Slowly, the father stretched forth a hand and raised the thick, reddish-brown hair to show... that the mother had no ears. "Mother said she was glad she never let her hair be cut," he whispered gently, "and nobody ever thought mother less beautiful, did they?" Real beauty lies not in the physical appearance, but in the heart. Real treasure lies not in what that can be seen, but what that cannot be seen. Real love lies not in what is done and known, but in what that is done but not known. Which of the following is NOT true according to the passage?
Real beauty lies in the heart. Real love lies in what that is done but not known. The passage mainly tells us how the boy succeeded. The love of mother is great.