Wherever she goes, Molly leaves her mark. Without saying a word, she speaks to people with her kind eyes. Even when she walks away, she leaves an impression. Molly's mark is a smile, stamped into the ground by the horseshoe at the bottom of her false leg．

    A few years ago, Molly was badly attacked by a dog. The dog bit all four of Molly's legs and left large cuts in her face. Molly's owner, Kate Harris, took her to an animal hospital. Doctors there were able to save Molly's life, but soon one of her legs became very infected (感染).

    At first, doctors thought Molly would have to be put to sleep. But Molly changed their minds. This pony, doctors noticed, shifted her weight, and rested her good leg from time to time. Doctors knew that Molly had amazing intelligence, and that she wanted to live.

    Several doctors operated on Molly, and removed her infected leg. A false leg was made for her. The leg was a hollow cast with a pole at the bottom for balance. Doctors gave Molly a special horseshoe at the bottom of the leg. This horseshoe she had had a stamp of a smile face in it!

    After the operation, Molly walked around on all four legs, as if nothing had ever happened to her! Now, with every step she takes, she stamps a smile in the dirt. But she leaves her mark in other ways, too.

    Kaye Harris took Molly to the false leg center. There were children there who, like Molly, had artificial arms or legs. They were amazed to see a pony with a false leg. Molly made them smile and gave them hope. Soon, Molly began to visit schools, nursing homes, army bases and hospitals. A book was even written about Molly!

    They may be teenagers, but 17-year-old Brittany Bull and 16-year-old Sesam Mngqengqiswa have grand ambitions(雄心) — to launch Africa's first private satellite (卫星) into space. They are part of a team of high school girls from Cape Town, South Africa, who have designed and built equipment for a satellite that will orbit over the earth's poles scanning Africa's surface.

    Once in space, the satellite will collect information on agriculture, and food security within the continent. Using the data/we can try to determine and predict (预测) the problems Africa will be facing in the future”, explains Bull, a student at Pelican Park High School.“Where our food is growing, where we can plant more trees and vegetation and also how we can monitor remote areas,” she says. “We have a lot of forest fires and floods but we don't always get out there in time.'' Information received twice a day will go towards disaster prevention.

    It's part of a project by South Africa's Meta Economic Development Organization (MEDO) working with Morehead State University in the US.

The girls (14 in total) are being trained by satellite engineers from Cape Peninsula University of Technology, in an effort to encourage more African women into STEM (science, technology, engineering, mathematics).

    Scheduled to launch in May 2017, if successful, it will make MEDO the first private company in Africa to build a satellite and send it into orbit.

    Mngqengqiswa comes from a single parent household. Her mother is a domestic worker. By becoming a space engineer or astronaut, the teenager hopes to make her mother proud. “Discovering space and seeing the Earth's atmosphere, it's not something many black Africans have been able to do, or get the opportunity to look at I want to see and experience these things for myself,” says Mngqengqiswa.

    Her team mate Bull agrees, “I want to show to fellow girls that we don't need to sit around or limit ourselves. Any career is possible-even aerospace.”

    Rainy days don't have to get you down, a happiness expert has reported.

    Paul Dolan, Professor of Behavioral Science at the London School of Economics, said that people only feel miserable in bad weather because they think about it too much. Studies have shown that people who live in warm, sunny climates are no happier than those in chilly, wet climates, he says. So the British talking about the weather may be making us gloomier（沮丧的） than the weather itself.

    He said: “A study was done that measured the happiness levels of people in California compared to the North West. “They expected that people in California would be happier because it is more sunny, but they found that levels of happiness were exactly the same. If it is sunny every day you get used to it and the sunshine doesn't make you any happier. Most of the time the weather doesn't influence our well-being at all. But when we think about it, and think that it does, that's when we get miserable.”

    In his new book, Happiness By Design, Dolan argues that we can think ourselves happy by taking our attention away from what makes us sad.

    “Most of our anxieties come from what might be,” he argues. “If you want to be happier, pay attention to the things that make you feel good.”

    He also claimed that a problem shared was not always a problem halved(减半). He believed that humans are actually very good at being able to get over tragedy(悲剧) and loss.

    Professor Dolan also admitted for the first time that he had a stammer（口吃）, which had made his early life miserable. He added it only got better when he learned not to pay attention to his speech problem.

    “Things are never as bad as you imagine them being,” he said.

    I am sure we've all come across inspiring quotes（引言）that made us nod in agreement or made us think, "Wow, that's good quotes". But we end up going back to procrastinating（拖延）on whatever it was we were procrastinating on. So is it worthwhile to read these inspirational quotes? Well, that depends.

    Quotes, books, articles, audio programs… all of these things are just tools and they're only effective when you use them. I don't know about you but most quotes I read don't do anything for me. However, every now and then, I will come across one that will positively affect me in some way such as reminding me to be grateful, getting me to work out extra hard at the gym without being pressed by my wife, or never give up when things get tough.

      From my experience, reading quotes is more effective when you're actually trying to motivate yourself rather than just reading them for the sake of reading them. The second you feel the urge to take action, you'd better immediately get up off your chair and take action.

    These quotes aren't for everyone. If you have read tons of them and have never been motivated or had a positive change in the way you look at life or how you treat others, or these quotes don't help you to insist on doing something when you feel like giving up on it, then it's probably not worthwhile to read more of them. If you have done something a bunch of times and it's not giving you the results you want, don't keep doing it. Try something else.

    Now if you've found some value in reading these quotes in the past, continue to make them more effective by letting them guide your life.

    No one knew Prince Edward Street as well as Pierre Dupin. He had delivered milk to the families on the street for thirty years. For the past fifteen years a large white horse named Joseph pulled his milk wagon. Joseph was a gentle horse with beautiful spirit shining out of its eyes, so Pierre named him after Saint Joseph.

    Every morning at five, Pierre arrived at the milk company's stables to find Joseph waiting for him, Pierre would call, "Good morning, my old friend." as he climbed into his seat, while Joseph turned his head toward the driver. And the two would go proudly down the street. Without any order from Pierre, the wagon would roll down three streets. Then it turned right for two streets, before turning left to Saint Catherine Street. The horse finally stopped at the first house on Prince Edward Street. There, Joseph would wait perhaps thirty seconds for Pierre to get down off his seat and put a bottle of milk at the front door.

    Pierre knew every one of the forty families that got milk. The cooks knew that Pierre could not read or write; so, instead of leaving orders in an empty milk bottle, they simply sang out if they needed an extra bottle.

    Pierre also had a wonderful memory. When he arrived at the stable he always remembered to tell Jacques, the foreman(领班) of the stables, "The Pacquins took an extra bottle this morning; the Lemoines bought a pint of cream …" Most of the drivers had to make out the weekly bills and collect the money. But Jacques, liking Pierre, never asked him to do this.

    One day the president of the milk company came to inspect the early morning milk deliveries. Jacques pointed to Pierre and said："See how the horse listens and how he turns his head toward Pierre? See the look in that horse's eyes? You know, I think those two share a secret. I have often felt it. He is getting old. Maybe he ought to be given a rest, and a small pension."

    "But of course," the president laughed. "He has been on this job now for thirty years. All who know him love him. Tell him it is time he rested. He will get his pay every week as before."

    But Pierre refused to leave his job. He said his life would be nothing if he could not drive Joseph every day. "We are two old men," he said to Jacques. "Let us wear out together. When Joseph is ready to leave, then I too will do so."

    Then one cold morning Jacques had terrible news for Pierre. Jacques said,"Pierre, your horse, Joseph, didn't wake up. He was very old, Pierre." Jacques said softly. "He is over in his stall, looking very peaceful. Go over and see him." Pierre took one step forward, then turned. "No … no … I cannot see Joseph again. You … you don't understand, Jacques."

    For years Pierre had worn a large heavy cap that came down low over his eyes. It kept out the bitter cold wind. Now, Jacques looked into Pierre's eyes and he saw something that shocked him. He saw a dead, lifeless look in them.

    "Take the day off, Pierre," Jacques said. Pierre walked to the corner and stepped into the street. There was a warning shout from the driver of a big truck … there was the screech(尖锐的刹车声) of rubber tires as the truck tried to stop. But Pierre heard nothing.

    Five minutes later a doctor said, "He's dead … killed instantly."

"I couldn't help it," the truck driver said. "He walked in front of my truck. He never saw it, I guess. Why, he walked as though he were blind."

    The doctor bent down. "Blind？Of course, this man has been blind for five years."  He turned to Jacques, "Didn't you know he was blind？"

    "No …no …" Jacques said softly. "None of us knew. Only one … only one knew－a friend of his, named Joseph … It was a secret, I think, just between those two."

    Everyone knows that if a dog's ears are up and its tail is wagging vigorously, it is definitely pleased to see you, but now scientists using a robot have found that the way dogs use their tails is more complicated than we thought, and that dogs which wag them to the left may he more friendly. The animal psychologists discovered that when real dogs approached a life-sized robot dog, they were less cautious about it when it was wagging its tail to the left, while if it was wagging its tail to the right, far fewer dogs approached it in a confident manner.

    In the first experiments, 56 percent of the animals approached the model without hesitation when the tail was wagged to the left, while only 21 percent did so in the other situation. When the researchers excluded (排除) owners from being present, the result were: 31 percent of the dogs approached continuously when the tail was wagging to the left, while only 18 percent did so when it was on the right.

    Animal psychologist Roger Mugford said it added to the growing evidence that does were even more complicated communicators than the animals more closely related to man such as monkeys. He said, "We know that dogs, in a sense, have languages, but it is more complicated because it is not just them wagging their tails, but also giving out chemical displays."

    He adds, "The research confirms earlier studies suggesting that dogs, like humans, had a left-side preference. If you are going to present a signal to a dog, it is sensible to put it on your left-hand side because that is where dogs, unlike most other animals, tend to look. It is another example of the similarity between dogs and humans. They are a lot more human than we give them credit for."