I' m ready to do my first jump 10 months after a skydiving (特技跳伞) accident. I can't wait! That accident almost killed (杀死) me and it made me stay in hospital for half a year. During the boring long days, I didn't feel good. "How could I live without my favourite sport?" I thought.

    It all started one evening after a nine-to-five day. I was sitting at home when an ad (广告)came on the television. "Try skydiving," it said. The next day, I went to the skydiving school in my town, At the end of the day's lessons, ] knew I found the right sport for me.

    I will never forget my first jump. Five of us walked to the runway and got into a plane. I was afraid, but the others were talking and smiling, and I started to feel a little relaxed. It was a beautiful, cloudless day and the sun was just going down. Soon it was time to jump. As I jumped from the plane, I shouted. But then everything became quiet (安静的). It was the most wonderful four minutes of my life.

    From the first jump, I was hooked. I started spending all my free time skydiving. It became my reason (理由) for living. Things were going really well. Then an accident happened on my 104th jump. I broke my both legs, right arm and nose. I stayed in hospital for six months, but I still couldn't forget skydiving.

    My mother couldn't understand why the only reason I wanted to get better was to go skydiving again. But for me, skydiving is life, and life is skydiving.

    One day, I saw a boy shop alone at the shop I worked. He chose some school things he wanted and went to the checkout (付款台).

    The young shop assistant (店员) told him he needed to pay $37.60. The boy became very sad and said he only had $20. He took out one thing at a time, and at last he got down to his $20. With eyes full of tears, he asked if he could call his mom to pick him up. When he got through, it seemed that his morn was too busy to pick him up in a minute.

    He tried to stop the tears and walked outside to wait on the chair in front of the shop. This was too much for the young assistant. She kept looking outside to see if the boy was all right. Then she said, "I wish I could pay for the rest (剩余部分) of his  things." One of the other girls said she had a few  dollars. Then two others said they could help, too.

    These four young girls pooled their money and found they had more than enough to pay for the boy s things. Then they chose more school things, and gave them all to the boy. The boy laughed happily. His morn arrived much later, but he didn't just run to the car; he ran back into the shop and called out, "Thank you!"

    I was so proud (骄傲的) of my team that day. They did something wonderful for that boy and also found the pleasure (快乐) of giving.

    Although half a century has passed, Shao Guohua never forgot the film ticket his teacher gave him that warmed his heart when he was a boy.  Shao entered primary school in Zigong, Sichuan Province, in 1960, Back then, sports and watching movies were the students' favorite times.

    Once, the school organized a trip to the movies for the students, and many of Shao's classmates signed (签约)  up for it.  But the boy had no money to buy the 0. 05-yuau ticket. When his classmates lined up to enter the movie theater, the boy stood alone outside. Then Shao's Chinese teacher Mo Xunru saw him and bought a ticket for him.

    He can't remember what movie it was, but Shao never stopped being thankful to his teacher. “Ms. Mo made forty or fifty yuan a month back then, so a 0.05-yuan ticket may not be a big deal for her. But for me, it moved me deeply,” said 63-year-old Shao.

    After graduating from primary school, Shao moved to another city along with his parents. In the following years, he tried to find his former teachers and classmates, but failed. It wasn't until this year that Shao visited his teacher Mo Xunru after 50 years.

    “The reunion (重聚) was emotional,” said Shao, who is over sixty himself now. “The 89-year old Mo did not hear well anymore and seemed to not know me at first sight, but she was still as kind as she used to be.” Shaoleft 1, 000 yuan to his teacher as well as a letter which reads: “Dear Ms. Mo, wish you good health. Your student: Shao Guohua.”

    A man was visiting a rich person's house. As he went along, he saw a box of apples on the side of the road. He said, "I do not want to eat those apples. The rich man will give me very nice food to eat." Then he took the apples and threw them away in the dust(尘土).

    He went on and came to a river. The river had gotten so high, and he could not get through it. He waited for some time and said," I cannot go to the rich man's house today, for I cannot get over the river."

    He started to go home. He had eaten no food that day. And he was very hungry. He came to the apples, and he was glad to take them out of the dust and eat them.

    Do not throw good things away. You might be happy to have them later.

    When our son Bradley was ten, the new bicycle he had received earlier that year was stolen. Owning a bicycle was a big deal to our children when they were little. They spent hours and hours, day after day, on their bicycles, riding up and down the footpath, and at the front of the house. We also rode together as a family a lot. Bicycling was a great way to get the kids out of the house and into the fresh air without spending any money.

    Bradley had discovered that his bicycle had been stolen from our backyard in Campbell town, South Australia, when he and his sister went outside for a morning ride. He couldn't believe that someone would do this.

    He got a large piece of cardboard, painted a sign begging for the bicycle to be returned, and tied the sign to the letterbox. The following morning, when I went out to collect the mail, I found a white envelope with the magical words," Buy yourself a new bicycle". There was a $100 banknote inside.

    We were very touched that someone had the heart to do this. We've never been able to thank the person but we suspect（猜想）that it may have been one of our wonderful neighbors. Bradley painted a big"             !" on the sign and we left it outside for a couple of weeks afterwards, hoping the kind stranger would drive down our street.

    A delighted Bradley was able to buy a new bicycle. As the years went on, the bicycles became bigger and more expensive but remained just as important for those family bicycle rides. Now Bradley is 25. Sometimes I miss the days when receiving a bicycle was the best thing in the world to them.

    All these years later we are still thankful for the stranger's kindness. We were a young family with three little children and it meant a lot to us. We still talk about it and, even now, wonder who the kind stranger was.

    Everyone faces challenges in their life, but some are more important than others. Daniel Kish had serious problems with his eyes when he was born. And doctors took away both of his eyes before he was fourteen months old.

    Soon after, however, he started to do an amazing thing. He started to make clicking(咔嗒) sounds with his tongue(舌头) to help him move around. Much like a bat(蝙蝠), he now moves about using sonar(声呐). He is so good at it that he can ride a bicycle in traffic. He and his group, World Access for the Blind, teach others how to use sonar. In this interview with National Geographic, Kish explains how the process works.

    How does sonar work?

    "When I make a clicking sound, it makes sound waves. These waves reflect(反射) off surfaces all around and return to my ears. My brain then processes the sounds into images(图像). It's like having a conversation with the environment

    When you click, what do you see in your mind?

    "Each click is like a camera flash. I make a 3D image of the things around me for hundreds of feet in every direction

    What is it like riding a bike using sonar?

    "It's exciting and enjoyable but requires a lot of focus. I click up to two times per second, much more than I usually do."

    Is it dangerous to move around the world in this way?

"Much of the world lives in fear of things that we mostly imagine. I have a habit of climbing anything and everything, but I never broke a bone (骨头) as a kid."

    How challenging is it to teach people to use sonar?

    "Many students are surprised how quickly results come. Seeing isn't in the eyes, it's in the mind."