Imagination and fantasy can play an important role in achieving the things we fear. Children know this very well. Fred Epstein, in his book If I Make It to Five, tells a story he heard from one of friends about Tom, a four-year-old boy with a cancer in his back bone. He came through several operations and a lot of pain by mastering his imagination.

    Tom loved to pretend, and he particularly loved to play superheroes, Dr. Epstein explained that it was actually a brilliant way for his young mind to handle the terrifying and painful life he led.

    The day before his third trip to the operating room, Tom was terribly afraid. ”Maybe I could go as Superman,”he whispered to his mom. Hearing this, the mother hesitated for a while. She had avoided buying the expensive costume（戏装），finally she agreed.

    The next day Tom appeared as the powerful Superman, showing off through the hospital halls and coolly waving his hand to the people greeting him along the way. And Tom, with the strength of his fantasy, successfully made it through the operation.

    The power of imagination need not be reserved for children only. We all have the power to use our fantasies to attempt things we never thought possible, to go through those things that seem impossible, and to achieve what we never believed we could. Just as Dr. Epstein puts it, ”If you can dream it, you can do it.”

    It doesn't mean that you should dress as a superhero for your next job interview. But, next time you are texted in a way that seems impossible, imagine what it would take to overcome it .Become the person you need to become to win over your challenge and do it in your mind first. So, let your imagination run wild, and dare to dream.

    It was a cold winter day. A woman drove up to the Rainbow Bridge tollbooth(收费站). “I'm paying for myself, and for the six cars behind me,” she said with a smile, handing over seven tickets. One after another, the next six drivers arriving at the tollbooth were informed, “Some lady up ahead already paid your fare.”

    It turned out that the woman, Natalie Smith, had read something on a friend's refrigerator: “Practice random(随意的) kindness and senseless acts of beauty.” The phrase impressed her so much that she copied it down.

    Judy Foreman spotted the same phrase on a warehouse(仓库) wall far away from home. When it stayed on her mind for days, she gave up and drove all the way back to copy it down. “I thought it was beautiful,” she said, explaining why she'd taken to writing it at the bottom of all her letters, “like a message from above.” Her husband, Frank, liked the phrase so much that he put it up on the classroom wall for his students, one of whom was the daughter of Alice Johnson, a local news reporter. Alice put it in the newspaper, admitting that though she liked it, she didn't know where it came from or what it really meant.

    Two days later, Alice got a call from Anne Herbert, a woman living in Marin. It was in a restaurant that Anne wrote the phrase down on a piece of paper, after turning it around in her mind for days.

    “Here's the idea,” Anne says. “Anything you think there should be more of, do it randomly.” Her fantasies(想象) include painting the classrooms of shabby schools, leaving hot meals on kitchen tables in the poor part of town, and giving money secretly to a proud old lady. Anne says, “Kindness can build on itself as much as violence can.”

    The acts of random kindness spread. If you were one of those drivers who found your fare paid, who knows what you might have been inspired to do for someone else later. Like all great events, kindness begins slowly, with every single act. Let it be yours!

    Who do you think was the most important woman of the past 100 years?

    Jane Addams (1860～1935)

    Addams helped the poor and worked for peace. She created shelters, education opportunities and services for people in need. In 1931, Addams became the first American woman to win the Nobel Peace Prize.

    Angela Merkel (1954)

    In 2005, Germans chose Angela Merkel as their first woman head of the country. She once worked as a research scientist until 1989. Then she entered politics and has been widely described as Iron Lady in Germany. She was elected as the most powerful woman by the Times in 2015. As Germany's leader, she has had an effect on the whole world.

    Margaret Thatcher (1925)

    In 1979, Margaret Thatcher became Britain's first woman Prime Minister (首相)．She served until 1990, which made her the first British leader to serve three terms in a row. Because of her high standards and strong will, people called her Britain's Iron Lady.

    Marie Curie (1867～1934)

    Polish­born scientist Marie Curie discovered that some types of metal give off energy called radiation (辐射能). Her research led to new medical treatments and arms. She received the Nobel Prize in Physics in 1903 and in Chemistry in 1911.

    Have you ever been afraid to talk back when you were treated unfairly? Have you ever bought something just because the salesman talked you into it? Many people are afraid to speak out for their rights. Dr Robert Albert, author of Stand Up, Speak Out, and Talk Back thinks it's because their self-respect is low.

    But Albert and other scientists are doing something to help people help themselves. They offer "assertiveness training" courses A. T. for short. In the A. T. Course people learn that they have a right to be themselves. They learn to speak out and feel good about doing so. They learn to help themselves without hurting other people.

In one way, learning to speak out is to get rid of fear, a group taking an A. T. Course will help the shy person to lose his fear. But a. T. uses an even stronger motive— he needs to share. The shy person speaks out in the group because he wants to tell how he feels. Whether or not you speak up for yourself depends on your self-respect. If someone you face is more "important" than you, you may feel less of a person. You start to doubt your answers to problems. You can get to feel good about yourself. And once you do you can learn to speak out.

    When a driver slams on the brakes to avoid hitting a pedestrian crossing the road illegally, she is making a moral decision that shifts risk from the pedestrian to the people in the car. Self-driving cars might soon have to make such ethical (道德的)judgments on their own — but settling on a universal moral code for the vehicles could be a tough task, suggests a survey.

    The largest ever survey of machine ethics, called the Moral Machine, laid out 13 possible situations in which someone's death was unavoidable. Respondents were asked to choose who to spare in situations that involved a mix of variables: young or old, rich or poor, more people or fewer. Within 18 months, the online quiz had recorded 40 million decisions made by people from 233 countries and territories.

    When the researchers analyzed these answers, they found that the nations could be divided into three groups. One contains North America and several European nations where Christianity has been the dominant (占支配地位的)religion; another includes countries such as Japan, Indonesia and Pakistan, with strong Confucian or Islamic traditions. A third group consists of countries in Central and South America, such as Colombia and Brazil. The first group showed a stronger preference for sacrificing older lives to save younger ones than did the second group, for example.

    The researchers also identified relationships between social and economic factors in a country. They found that people from relatively wealthy countries with strong institutions, such as Finland and Japan, more often chose to hit people who stepped into traffic illegally than did respondents in nations with weaker institutions, such as Nigeria or Pakistan.

    People rarely face such moral dilemmas, and some cities question whether the possible situations posed in the online quiz are relevant to the ethical and practical questions surrounding driverless cars. But the researchers argue that the findings reveal cultural differences that governments and makers of self-driving cars must take into account if they want the vehicles to gain public acceptance.

    At least Barbara Wage, who heads a group working on autonomous-vehicle ethics at Audi in Ingolstadt, Germany, says such studies are valuable. Wage argues that self-driving cars would cause fewer accidents, proportionally, than human drivers do each year—but that people might focus more on events involving robots.

    Surveys such as the Moral Machine can help to begin public discussions about these unavoidable accidents that might develop trust. "We need to come up with a social consensus," she says, "about which risks we are willing to take."

Recess (课间休息) time has been dropping for many children in America. This drop began the same year the No Child Left Behind Act (NCLB) was passed. The law aimed to make American education system more internationally competitive by introducing achievement goals for schools. And the goals are gauged (评定) by standardized tests in reading and math. If schools missed their achievement goals, they could be in trouble, including loss of funding.

It's no surprise that teachers have felt the pressure to make sure students perform well on standardized tests. When educators are facing pay cuts, loss of funding to their school and perhaps even the loss of their jobs, it's no wonder that they started questioning if recess was a waste of time. This pressure to bring even more learning into the school day is especially felt by underperforming, low-income schools that are already short of funding.

It may seem strange to send kids out to play when they're falling below state standards, but getting outside for unstructured (散乱的) play may be more helpful than keeping kids in the classroom all day.

"Moving, running and playing outdoors freely have great influence on children. These activities play a role in children's abilities to focus and control themselves throughout the day," Marie Conti says, a famous educator of early childhood education. The mind cannot be educated without using the body. Learning is a whole of thinking and moving," she added.

Recess time makes it possible for children to learn something they can't get in class. Asking other kids to play, explaining the rules of a complex game and ending arguments are all important life lessons that children can only learn if they're given time to play. When something unhappy happens, children can find a way to get back to having fun themselves.

The physical activities kids take part in during recess can also reduce stress levels and allow children to feel more relaxed. In an education system that. Continues to place higher expectations on children to perform to a certain standard, less stress is just what the doctor ordered.