George Wilson was the owner of a watch shop. One day he told his son James," I'll teach you all I know about watches."

    For the first few weeks, James looked after the front of the shop. He worked hard and was  to the customers(顾客). George was very pleased with(对...... 很满意) him.

    After about six months, James said to his father," "Is there anything else you want to teach me?"

    "Yes," said George," it's time for me to teach you how to make "

    "I know that," said James," you buy watches at one price and sell them at a  price. That's how we get so much money."

    "That's true. But we don't make most of the money from it." He picked up a watch from the counter(柜台)."What do you think of this watch?"

    "That's a cheap watch. We can only get few dollars from   it."

    "You are wrong, my son," George said," those cheap ones get  money to us than any other watch in the shop."

    "I don't understand," James said.

    "Because they are really cheap, they are always breaking, and we make our money from fixing them."