Thomas Alva Edison is one of the greatest inventors of all times. One of his most famous achievements is the electric light. He tried thousands of times to make a long lasting light bulb. Although the light bulb is not his invention, he is the only one to have made such a successful light bulb. Many people remember him for the invention of the electric light. He held a lot of patents (专利权) worldwide. Many of them were approved(批准) in America.

    We can find his inventions in many fields. In fact, many of the advanced inventions were based on his ideas. He invented a phonograph (留声机),a film picture camera, a ticket recorder and so on.  

    Edison was not a good student at school. But he loved to do new experiments. When he was still a child, he built his first lab to perform his experiments.

      An amazing story of Edison's childhood is that he almost made his servant die. Edison used to think that birds ate insects and these insects might make them fly. So he collected these insects and blended (混合) them to make juice. He then let his servant drink the juice. After drinking the juice, the girl lost her sense. But luckily, she was saved.

    When I was about 12, I had an enemy, a girl who liked to point out my shortcomings (缺点). Sometimes she said I was thin. Sometimes she said I was lazy. Sometimes she said I wasn't a good student. Sometimes she said I talked too much, and so on. I tried to put up with (忍受) her as long as I could. At last, I became very angry. I ran to my father with tears in my eyes.

    He listened to me quietly, and then he asked, "Are the things she said true or not? Mary, didn't you ever wonder what you're really like? Go and make a list of everything she said and mark the points that are true. Pay no attention to the other things she said."

    I did as he told me and to my surprise, I discovered that about half the things were true.

    I brought the list back to my dad. He refused to take it. "That's just for you," he said. "You know better than anyone else the truth about yourself. When something said about you is true, you'll find it will be helpful to you. Don't shut your ears. Listen to them all, but hear the truth and do what you think is right."

    Many years have passed. The situation often appears in my mind. In our life we often meet with some trouble and we often go to someone and ask for advice. For some advice you will treasure (珍惜) all your life!

    Valentine's Day is a very old holiday. It goes back to the times of Ancient Rome (古罗马). One of the characters we often see on Valentine's Day is Cupid. He was the son of Venus, the goddess of love. He shoots people with arrows (箭) of love. When a man and a woman are hit by his arrows, they will fall in love.

Today people celebrate Valentine's Day on February 14. If a man and a woman are in love, they will give each other gifts. The most popular gifts are flowers (especially roses) and chocolates. Couples may also go to a restaurant for a very nice dinner or plan something else romantic.

    In the United States, Valentine's Day is not just for lovers. Children make special Valentine's cards for their classmates. Families and friends may give candy or other small gifts to each other. It can be a fun day.