Years ago, I lived in a building in a large city. The building next door was only a few feet away from mine. There was a woman who lived there, whom I had never met, yet I could see her seated by her window each afternoon, sewing or reading.

    After several months went by, I began to notice that her window was dirty. Everything was unclear through the dirty window. I often said to myself, "I wonder why that woman doesn't wash her window. It really looks terrible."

    One bright morning I decided to clean my flat, including washing the window on the inside.

    Late in the afternoon when I finished the cleaning, I sat down by the window with a cup of coffee for a rest. What a surprise! Across the way, the woman sitting by her window was clearly seen. Her window was clean!

    Then it dawned on me. I was always criticizing(批评) her dirty window, but all the time I was watching hers through my own dirty window.

    That was quite an important lesson for me. How often had I looked at and criticized others through the dirty window of my heart, through my own mistake?

    Since then, whenever I wanted to judge(评判) someone, I asked myself first, "Am I looking at him through my own dirty window?"

    Then I try to clean the window of my own world so that I may see the world around me more clearly and correctly.

    Most musicians agree that the best violins were first made in Cremona, Italy, about 200 years ago. These violins sound better than any other violin. They even sound better than the violins made today. Violin makers and scientists try to make instruments like the Italian violins. But they aren't the same. Musicians still prefer the old ones.

    Some people think it is the age of the violins. But not all the old violins sound wonderful. Only the old violins from Cremona are special. So age cannot be the correct answer.

    Other people think the secret to those violins is wood. The wood must be from certain kinds of trees. But the kind of wood may not be so important. It may be more important to cut the wood in a special way. Wood for a violin must be cut very carefully. It has to be the right size and shape. The smallest difference will change the sound of the violin.  Musicians sometimes think that it is the secret of the Italians. Possibly they understood more than us about how to cut the wood.

    Size and shape may not be the answer either. Scientists can make new ones which are exactly the same size and shape. But the new violins still do not sound as good as the old ones. Some scientists think the secret may be the varnish (清漆). Varnish is what covers the wood of the violin. It makes the wood look shiny. It also helps the sound of the instrument. But no one knows what the Italian violin makers used in their varnish.

    One afternoon, on my way home, I saw a car accident (事故)!

    I asked people for help, but no one stopped. When the car driver and his wife saw this, they quickly closed the window of the car and drove away. "What shall I do? The old man needs help," I thought.

    At that time, a truck stopped and the driver came out. "What's wrong with the old man? What can I do?" the driver asked me. "Sir, please help the old man. A car hit him and he is badly hurt!" I said. "well, don't worry. Let me take him to the hospital first," the driver said.

    A few minutes later, the driver took the old man to the hospital and I called the police. I told the whole story to the police and I also told them the number of the car. The police said to me, "Well done, boy! Leave it to us, We will punish (惩罚) them!"

    When I got home, it was 7: 30. I thought I was great.

    In this August, I had a trip called "Cultural Trip: Germany, Italy & France" to go to Europe with a group of American students.

    This was not my first time to other countries, but it was unusual one. Why do I think the trip Unusual? Travel agencies (旅行社)usually have travel buses for tourists, What about us ? For five days, we traveled along Germany by bike. We were tired but happy! For some times on the trip, something went wrong with someone's bicycle. But at the end of the trip, everyone was safe and happy.

    In Italy, we went to a kitchen to learn to cook Italian dishes, we made a great dinner and ended by making the chocolate cake. I gave full marks to that night!

    France was the last stop, we went to the capital of France, Paris. We went to the Eiffel tower and we even got onto it. The tower is 324 meters tall, It has three levels(层) for visitors. There are restaurants on the first and second levels. The top level is 276 meters above the ground. If you climb from ground level to the first level, you need to climb over 300 steps. There are another 300 steps from the first level to the second level. That's why people usually get onto the top level by lift.