Mrs. Smith is an unusual teacher. Once she told each student to bring along a few potatoes in plastic bag. On each potato the students had to write a name of a person that they hated And the next day, every child brought some potatoes. Some had two potatoes；some three；some up to five.

 Mrs. Smith then told the children to carry the bags everywhere they went, even to the toilet, for two weeks. As day after day passed, the children started to complain(抱怨)about the awful smell of the rotten（腐烂的）potatoes.

 Those children who brought five potatoes began to feel the weight trouble of the bags. After two weeks, the children were happy to hear that the game was finally ended. Mrs. Smith asked,“How did you feel while carrying the potatoes for two weeks?” The children started complaining about the trouble loudly．

Then Mrs. Smith told them why she asked them to play the game. She said,“This is exactly the situation when you carry your hatred（仇恨）for somebody inside your heart. The terrible smell of the hatred will pollute your heart and you will carry something unnecessary with you all the time. If you cannot stand the smell of the rotten potatoes for just two weeks, can you imagine how heavy it would be to have the hatred in your heart for your lifetime? So throw away any hatred from your heart, and you'll be really happy．

    An old man walked slowly into a restaurant with his cane(拐杖).His old jacket and shoes made him unusual that day.

    A young waitress named Mary watched him move towards a table by the window.She ran over to him,and said with smile,“Here,sir.Let me give you a hand."

    Without saying a word,he gave her a smile. She pulled the chair out from the table and helped him sit down. Then she put his cane against the table where he could reach ithimself. In a soft, clear voice he said,"Thank you." "You're welome, sir," she replied. I'll be back in a moment, and if you need anything, just wave(挥手) at me!"

    After he had finished a good meal,Mary brought him the change. She handed him his cane, and walked to the front door. Holding the door open for him, she said,“Come back and see us, sir! ”The old man turned around and smiled.

    When Mary went to clean his table, she was shocked. Under the plate, she found a business card, a 100—dollar and a note.The note said.

    “Dear Mary, I respect you very much, and you respect yourself, too. It shows the way you treat others. You have found the secret of happiness."

    In fact,the old man was the owner of the restaurant. That was the first time that she, or any of his waitresses, had seen him.

    Martina looked out of the window. A robin was singing a lively song in the tree. At this time, Grandpa, who lived with the family since Grandma had died, came in. He looked at the floor as if looking for something. He said, "When the robin sings..." he stopped, trying to remember what he had started to say.

    "Spring is here," Mum finished the sentence. "And I'm thinking of our spring cleaning," Mum suggested. "Martina, you can help me, right?" Martina agreed unwillingly.

    They cleaned the house. They cleaned upstairs, downstairs, inside, outside, until everything was clean. Then Mum pointed to Grandpa's sofa and shouted. "That old sofa has got to go. We'll buy Grandpa a new one."

    It was true and Martina had to agree. The sofa was really old. As they tried to move the sofa, Grandpa stood in their way. "You can't take my sofa," he shouted.

    "It's old," Mum said. Grandpa tried to push his sofa back into place. "We'll buy you a new one," Mum promised.

    "I don't want a new one," Grandpa insisted. Mum let go of the sofa. "We'll talk about it tonight when John gets home." John, Martina's dad, was still at work.

    "Why don't you let us take away the sofa? It's too old!" Martina asked when the family were having supper. Grandpa shook his head and said, "I sat in this sofa, with your grandma right here, when I asked her to marry me. It was so long ago, but when I sit in this sofa and close my eyes I feel she is near."

    "It's amazing," Martina thought, "how Grandpa can remember things from the past. These days he forgets almost everything."

    The old man smiled to Martina and went on. "And the night your father was born, I sat in this sofa. I was nervous when they placed the little baby into my arms."

    "I think I'm beginning to understand," Martina said. "Many years later," Grandpa continued, "I sat in this sofa when the doctor called and told me that your grandma was ill. I was lost without her, but the sofa gave me the comfort."

    "I do see now," Martina looked at Grandpa. "This is not just an old sofa. This sofa is more like a friend." "Yes," Grandpa added. "We've got through a lot together." The whole family agreed that the living room would be boring without the old sofa.