Eight-year-old Owen Howkins suffers from growth delays(迟缓) and poor eyesight. This means that Owen needs a wheelchair to get around. Not surprisingly, he felt people were staring (盯着看) at him, and that made him very uncomfortable, so he became lonely and even stopped going outside of his house. That, however, was all before Haatchi came into his life!

    Haatchi had a very unlucky start to life too. Tied to a railway track when he was just five months old, the dog was hit by a train. The hit unjured his tail and a leg so badly that both had to be cut off. Taken to a rescue shelter(救助站), the dog would have probably been killed if his story posted on Facebook had not been seen by Owen's dad Will. He fell in love with Haatchi and decided to keep him, thinking that they were helping him. It turns out that it was Haatchi who helped them. By always staying at young Owen's side, he became the boy's best friend. Slowly Owen liked to go outside. Wherever he goes, the dog follows and protects him. Owen now proudly walks around the neighborhood, showing off his dog and telling anyone willing to listen, Haatchi's story.

    Haatch's positive influence on the young boy has not gone unnoticed. In October 2012, the International Fund of Animal Welfare presented him with a special award(奖). The amazing friendship between the two has also been shown in a touching short film called “A Boy and His Dog” by students from the filmmaking class at the University of Hertfordshire. It has won several awards and had almost 2 million views. British best-selling author Wendy Holden has also writtern about this touching friendship in a aheartwarming children's book, which was released on February 13th and had made Owen and Haatchi better known!

    For most of my 20 years as a teacher, summer vacation was my time to relax. So why was I standing in the schoolyard of an unfamiliar school, wearing myself out for a summer teaching job? The extra paychecks were nice, but I lacked the energy of my younger colleagues. Like Stella. She was in her early twenties, and made keeping up with the kids look effortless. She reminded me of myself, back when I was a bright-eyed student teacher at Ramona Elementary…

    I'd never forget my first day. I was too full of energy. Nervous energy. My supervising teacher was watching, and I wanted to make a good impression. I asked my third graders to take out their crayons for the day's lesson. All of them obeyed. Except one. A girl with two long, dark braids(辫子). Everyone called her Estrellita, or “little star.” Why was she unprepared for class? I demanded to know.

    “My sister has my crayons,” she said.

    “You should each have your own crayons,” I told her. “That's no excuse.”

    “There are 10 children in my family,” Estrellita said quietly, her big brown eyes never leaving my face. “We have to take turns.”

    I was taken aback. I'd completely misjudged the situation. All day Estrellita's words played on my mind. The next morning I bought a pack of crayons to leave on Estrellita's desk. She was so happy! That experience taught me an important lesson. Every student had a unique set of challenges—it was my mission to help my students overcome them. That mission used to energize(激励 )me.

    Rest was almost over. Stella turned to me and we started chatting. “How long have you been teaching?” she asked. I told her I'd started twenty years before, at Ramona Elementary.

    “I went to school there twenty years ago!” Stella said. I looked at her again, this time really seeing her. Those big brown eyes. That long, dark hair...

    “Did you use to have two long braids?” I said. “We called you Estrellita… ”

    Stella shouted. “ You ! You gave me the crayons!”

She'd become a teacher. To help students like I did. Even doing something that small mattered.

    That summer, I threw myself into teaching with a renewed sense of purpose. Estrellita had taught me a lesson once again.

    If your life were a book and you were the author, how would you want your story to go? That's the question that changed my life forever.

    At the age of 19, I became a massage therapist(治疗师). For the first time in my life, I felt free, independent and completely in control of my life. That is, until my life took a detour. I was diagnosed with bacterial meningitis. Over the course of two months, I lost my spleen(脾), my kidneys, and both of my legs below the knees.

    One day, I went home. I crawled into bed and this is what my life looked like for the next few months me passed out, escaping from reality, with my legs resting by my side. I was completely physically and emotionally broken. But I knew that in order to move forward, I had to let go of the old Amy and learn to embrace the new Amy. And that is when I began to realize that I didn't have to be small any more. I could be as tall as I wanted or as short as I wanted depending on whom I was dating. And if I snowboard again, my feet aren't going to get cold. And the best of all, I thought, I can make my feet the size of all the shoes that are on the sales shelf. And I did!

    I started snowboarding. Then I went back to work. And then I co-founded a non-profit organization for physical disabilities so that they could get involved in action sports. And just this past February, I won two World Cup gold medals, making me the highest-ranked adaptive female snowboarder in the world.

    Eleven years ago, when I lost my legs, I had no idea what to expect. But if you ask me today, if I would ever want to change my situation, I would have to say no, because my legs haven't disabled me. They've forced me to rely on my imagination and to believe in possibilities, and that's why I believe that our imaginations can be used as tools for breaking through borders, because in our minds, we can do anything and we can be anything. It's belief in those dreams and facing our fears directly that allow us to live our lives beyond our limits.

    On a rainy winter day, several decades ago, a British artist named Christopher got on a train in Oxford to go to London. When he began his journey, he never knew that it was the beginning of almost 40 years of accidents and near death experiences.

    During the journey, the train fell into an icy river, killing 12 passengers. Christopher managed to swim back to the river bank. He only had a broken leg.

    Two years later, Christopher was on a plane from London to Manchester when a door suddenly opened and he fell out. A few minutes later, the plane crashed; 27 people were killed. Christopher was so lucky that he landed in a haystack (干草堆).

    A few years later, he was hit by a bus, but again had no serious injuries. Then a year after that, he was driving on a mountain road when he saw a truck coming straight at him. He drove the car off the road, jumped out, landed in a tree — and watched his car fall 100 meters down the mountain.

    "There are two ways you can look at it," Christopher said. "I'm either the worlds unluckiest man, or the world's luckiest." When a reporter asked Christopher what he thought, he chose the "luckiest" one.

    Two years ago, aged 71, Christopher bought his first lottery ticket (彩票) in 50 years and won more than 2 million. After this, a TV company in America said they wanted him to make an advertisement. At first he accepted, but then he changed his mind. Christopher said he would not fly to Los Angeles for the filming, because he did not want to push his luck. Who knows? If he had accepted the invitation, maybe he would have had another accident. But Mr. Christopher is a lucky man. If he had had another accident, he probably would have survived that too!

The ancient Herculaneum scrolls (卷轴)are thought to contain works of important thinkers in ancient Greece. But the scrolls can't be unrolled (打开). Even a light wind threatens to reduce them to dust. The reason is that they were turned into carbon by a natural disaster in A.D. 79.

But now researchers from the University of Kentucky have found a way to look inside the scrolls without having to touch them. They first create a light that is 10 billion times brighter than the sun by taking advantage of a machine. Then they will use the light to go through the Herculaneum scrolls to study and finally read the words recorded on the scrolls. Researchers think it might take them six months to read the scrolls.

This isn't the first time researchers have tried to read the Herculaneum scrolls. Several years ago, scientists from the European Synchrotron Radiation Facility (ESRF) worked on uncovering the mystery using an X-ray beam 100 billion times brighter than anything used in a hospital, This didn't allow scientists to actually read the scrolls, but it allowed them to make one surprising discovery. The scrolls were written in metallic (金属的) ink, a writing technology that scientists didn't know existed at the time the scrolls were penned.

"For a long time, we thought our studies have let us know everything about the ancient ink used to write on scrolls. Now we find it's not the case. This shows that we should tell ourselves it may not be true when thinking we fully know something once some research is done," said Daniel Delattre, one of the study's authors.

The finding wasn't just a historical curiosity. To learn just how special these scrolls are, consider that the thinker Chrysippus in ancient Greece is said to have written over 700 works; but all are lost, with the exception of a few works found in the Herculaneum scrolls. In other words, it's possible that these scrolls represent the only existing complete works left by this great thinker. And who knows what other great works could exist in the scrolls?