"If you want to see a thing well, reach out and touch it!"

That may seem a strange thing to say. But touching things can help you to see them better.

    Your eyes can tell you that a glass ball is round. But by holding it in your hands, you can feel how smooth and cool the ball is. You can feel how heavy the glass is. When you feel all these about the ball, you really see it. With your skin, you can feel better. For example, your fingers can tell (辨别) the difference between two coins in your pocket. You can feel a little drop of water on the back of your hand, too. You can even feel sounds against your skin. Have you ever wanted to know why some people like very loud music? They must like to feel the sounds of music.

    All children soon learn what "Don't touch!" means. They hear it often. Yet most of us keep on touching things as we grow up. In shops, we touch things we might buy: food, clothes. To see something well, we have to touch it. The bottoms of our feet can feel things, too. You know this when you walk on warm sand, cool grass or a hard floor. All feel different under your feet.

    There are ways of learning to see well by feeling. One way is to close your eyes and try to feel everything that is touching your skin. Feel the shoes on your feet, the clothes on your body, the air on your skin. At first, it is not easy to feel these things. You are too used to them!

    Most museums are just for looking. But today some museums have some things to touch. Their signs say, "Do touch!" There you can feel everything on show.

    If you want to see better, reach out and touch. Then you will really see!

    Your next ca might drive itself. After years of trials on city streets, driverless vehicles are now nearing the live phase. Last moth, a driverless bus began carrying passengers through Lyon, France, Most in the automobile industry think self-driving vehicles will be on the road by 2020 or before.

    Driverless cars will at first be huddled with human-driven cars. But the first places where they will become dominant（统治的）are dense urban areas — precisely the spots most damaged by the automobile age. Many advanced cities are already reducing the role of human-driven cargo. Driverless cars will quicken that process and will bring us enormous benefits.

    Driverless cars will reduce accidents by around 90 percent. That's big—the annual death toll on the world's roads is about 1.2 million a year. Pollution and carbon emissions will drop, because urban driverless cars will be electric. The old, otherwise they would stay at home most of the time and the disabled and teenagers will suddenly gain mobility.

    On the other hand, driverless cars will bring catastrophe. The best thing about the automobile age was that it employed tens of millions of people to make, market, insure and drive vehicles. Over the next 20 years, the mostly low-skilled men who now drive trucks, taxis and buses will see their jobs reduced. Carmakers are especially scared. The few cars of the future might be made by tech companies such as Apple, Baidu and Google. Imaging the impact on Germany, where the automotive sector is the largest industry.

    Dramatic change is coming, and driverless cars could arrive by 2020. But governments have barely begun thinking about it. Only 6 percent of the biggest US cities have factored them into their long-term planning.

    A decade ago anyone hardly saw the Smartphone coming. It has bought an epidemic of mass addiction. Let's hope we do a better job of handling the driverless car.

    In America, parents tend to encourage their children to develop their potential (潜能) to the fullest extent. Fathers and mothers frequently teach their children both ambition and the confidence necessary to work toward their goals. American parents are always active in concentrating on what their kids can do, not what they can't. As a result, millions of American boys and girls grow up hoping to become actors and athletes, diplomats and doctors. Many of them even want to become president.

    American parents often encourage their children to become involved in extra activities of all types at school, such as student government, sports and music. They believe that only through taking part in these activities can their children become mature young adults.

As we all know, school work is important. But parents should realize that the social skills their children learn from natural conversations with each other are as important as schoolwork and the skills they will need in the future work. What's more important in their work is that their children should have a sound knowledge of physics or the ability to communicate effectively.

As a rule, Chinese parents don't educate their children about the same kind of ambition and confidence as Americans do, nor do they encourage the same level of participation in extra activities. Children are typically advised to study hard and pass exams. They have to spend a lot of time in doing much schoolwork every day. It is a great waste of time to do so.

Now more and more Chinese parents have recognized that they should pay attention to developing the potential of their children. I hope that leaders in Chinese educational circles should take some measures to develop the potential of their children. I am very confident about it.

Most young people enjoy some form of physical activity. It may be walking, cycling or swimming, or winter, skating or skiing. It may be a game of some form—football, hockey, golf or tennis. It may be mountaineering.

    Those who have a passion for climbing high and difficult mountains are often looked upon with surprise. Why are men and women willing to suffer cold and hardship, and to take risks on high mountains? This astonishment is caused, probably, by the difference between mountaineering and other forms of activity to which men give their leisure.

    Mountaineering is a sport and not a game. There are no man-made rules, as others, as there are for such games as golf and football. There are, of course, rules of a different kinds which would be dangerous to ignore, but it is this freedom from man-made rules that makes mountaineering attractive to many people. Those who climb mountains are free to use their own methods.

    If we compare mountaineering with other more familiar sports, we might think that one big difference is that mountaineering is not a “team game”. We should be mistaken in this. There are, it is true, no “matches” between “teams” of climbers, but when climbers are on a rock face linked by a rope on which their lives may depend, there is obviously teamwork.

    The mountain climber knows that he may have to fight forces that are stronger and more powerful than man. He has to fight the forces of nature. His sport requires high mental and physical qualities.

    A mountain climber continues to improve in skill year after year. A skier is probably past his best by the age of thirty. But it is not unusual for men of fifty or sixty to climb the highest mountains in the Alps. They may take more time than younger men, but they perhaps climb with more skill and less waste of efforts, and they certainly experience equal enjoyment.

Some people often wonder whether they are fighting a battle with their genes to maintain a healthy weight. In fact, researchers have provided plenty of evidence that people are born with tendencies to be lighter or heavier. For example, studies of identical twins have revealed great similarity in their overall weight. Part of this similarity may be explained by the finding that some people are born to burn a lot of calories just through ordinary day-to-day activities while others are not. Those who are not are more at risk for weight gain.

Researchers have discovered some of the actual genetic mechanisms (机制) that may make some individuals more likely to be obese. For example, a gene has been found that appears to control signals to the brain that enough fat has been stored in the body in the course of a meal—so the individual should stop eating. The gene influences the production of leptin (瘦蛋白), which keeps appetite under control. If leptin doesn't work well, it is likely that individuals will continue to eat. Thus the gene that controls leptin appears to have a critical influence on the potential for obesity.

The confirmation that leptin plays a role in weight control has encouraged researchers to identify and understand other weight-related genes. Recent attention has focused on a gene called GAD2. GAD2 helps control the amount of the neurotransmitter (神经递质) GABA. In general, when more GABA is available, appetite is increased. For that reason, people who have a form of GAD2 that allows more GABA to be available may be at risk for overeating. You can see that GAD2 is not directly an obesity gene. Rather it has an indirect influence on obesity through its direct influence on GABA.

Genetic research holds out the promise of innovative solutions to obesity. Researchers hope that an understanding of the link between genus and weight control will enable them to provide new drug treatments. Nonetheless, even the most optimistic researchers provide a warning: "Innovative drugs will be effective only when they are used along with lifestyle changes."

Standing on the South Pole at the start of the year with the wind blowing across the Antarctic, travel blogger Johnny Ward felt a wave of relief.

Just a week before, in early January 2024, he'd struggled through snow and ice to climb to the top of the Vinson Massif, Antarctica's highest peak. Years before, in 2017, he'd become the first Irish person to visit every country in the world.

Now, after decades of traveling and mountaineering, Ward could claim another world first—the Ultimate Explorer's Grand Slam (大满贯), which involves reaching the highest peak on every continent, and visiting both the North and South Poles in addition to visiting every country.

"I feel relieved," Ward recalled as he slowly made his way back to his home in Thailand after climbing to the top of the Vinson Massif and then setting foot on the South Pole. "But also I'm aware I'm a normal guy, not a world-class athlete, so I guess it was more about resilience and determination more than any ability. Although I met with lots of barriers, I overcame them one by one."

Ward had previously devoted a decade of his life, between 2007 and 2017, to visiting every country in the world. The incredible journey saw him hitchhike (搭便车) a ride on a container ship from Oman to Socotra in Yemen, travel overland from Cairo to Cape Town and travel from South Korea to Australia by bus and boat.

"It had been a huge life goal, over a decade of my life, and then when I finished that I was aimless and had no idea what to do next," he said. "I started eating badly, drinking too much, putting on weight and I ignored my business."

Ward decided that the best way to overcome this was to challenge himself again. He began running ultramarathons (超级马拉松) and climbing mountains, and soon found that with extreme purpose and direction, he was back to loving life again.

So where will Ward go next? Space? The bottom of the Mariana Trench, the deepest point of the ocean? "All good things come after suffering, and I want to share that with people. So that's the next plan," he said.