In today's world of smart phones and notebook computers, most people have at least one time-telling thing with them. Since these digital products are so common, is time running out for the 500-year-old watch? According to some consumers, the answer is yes. New Jersey teenager Charlie Wollman says a watch is “an extra piece of equipment with no necessary function.” Many young adults think so and use their smart phones to tell time. It is said that fewer young people wear watches today than ten years ago. As a result, some people say that the watch industry is at a crossroads.

    However, watchmakers optimistically say that watches regain popularity when consumers reach their 20s and 30s. By then, they are willing to spend money on a quality watch that doesn't just keep good time. Fifty years ago, watchmakers took pride in their products' accuracy. But in recent years, the watch industry has changed itself into an accessory(附属的) business. And today, the image a watch communicates has become more important than the time it tells.

    “Complications” — features that go beyond simple timekeeping — are an important part of a watch's image. Today's watches offer lots of features that meet almost any personality. These features include compasses, USB drivers, and even other functions .

    Creativity also plays a key role in designing today's watches. For example, Japanese watchmaker Tokyoflash makes watches that don't even look like watches. The company's popular Shinshoku model uses different color lights to tell time. It looks more like a fashionable bracelet(手镯) than a watch.

    Whether a watch communicates fashion sense, or creative talent of a love sports, consumers want their watches to stand out. Nowadays, everyone has the same kind of gadget(配件) in their bags, so people want to make a statement with what' s on their wrists. Will this interest in wrist fashion last? Only time will tell!

    Let's face the facts. On most occasions, some things may seem impossible, but in every impossibility, there is possibility. Impossible situations don't last forever. While it might be impossible for one, it could still be possible for another. In a word, everything is possible.

    Someone once said, “Success belongs to those who can look at challenges offered by the world as an inspiration.” So your challenges are golden opportunities for success. How can there be wonders if there are no difficulties? You need challenges to show your ability and success comes from the problems you face. Those who refuse to give in come out smiling.

    Robert X. Perez once said, “The seeds of success spring from failure's ashes; failure is not defeat and it just directs you in the right direction. To fail is to understand what you should not do. Remember it and don't give up until your goal is achieved.”

    What should you do when you face difficulties? Jasbeen says, “Yeah, life is difficult, but you shouldn't give up. You should have a positive and calm attitude towards all your difficulties and make the best of them. You may learn something new. You can accept failure and develop mental toughness. Mental toughness is to see the long-term pains rather than be put off by short-term pains. Once you have this toughness, you have an advantage of winning.”

    The only thing in life you ever really regret is the chances you didn't take. You will only regret when you are faced with the consequences of not taking chances and seizing the moment. Take every chance you can!

    Everything you've done in life may be good or bad, but no matter what you may do, you must try your best. You must do something meaningful and do it right now.

    With the start of the new term, the students around the country exchange their fun and fashionable clothes for boring school uniforms. But not all schools are fashion deserts. Colorful sports shoes, school bags, T-shirts and even drink containers are breathing life into campuses.

    "The uniform makes us look like a bunch of clones, especially when we are doing morning exercises on the playground," said Qing Pei, a Senior 2 from Shanghai Qibao High School. "But the boys wear different sports shoes and girls have different decorations in their hair. These are the areas where you can express yourself," said Qing.

    Although it might be strange for boys to talk about fashion, they do care about what they wear in school, especially shoes, according to Qing.

    "Nike and Adidas basketball shoes, although they are still the must-have items for many of my friends, are becoming out-of-date," Qing added. He explained that "Since Liu Xiang ran so fast in Athens, running shoes are becoming popular in this autumn."

    "Still in fashion are the various baseball caps and American-style T-shirts with random (随意的) English words printed on them," said Qing. "The accuracy of the written message is not important. Often, the words are misspelt. Sometimes they do not even make sense, "Qing said with a smile.

    Besides sports shoes and T-shirts, styles and colors of school bags are another opportunity for students to express their taste in fashion. Some bags are made more eye-catching by decorating them with small hanging dolls.

    Other fashionable items are the colorful drink containers which are now popular among girls this term.

    "Some teachers are surprised to see a teenager sucking a bottle like this at school and criticize it as a childish regression (退化). But some girls just love it," said Yang Rui, a Senior 3. from High School attached to Xi'an Jiaotong University.

    When my vision-challenged daughter was 3, and I was pregnant with my second child, we got her glasses. It was a long process involving many different opticians (配镜师)over the course of a year, because of my daughter's overwhelming desire to scream and fly into a temper any time we tried to have her eyes examined. The fourth optician was amazing while my daughter didn't cooperate, she performed various miracles and managed what she called a “best guess” at her prescription.

    “Start with this,” she said. “When she realizes she can see better, bring her back, and we can try for something more accurate.”

    I didn't want to pay $300 for glasses that might be replaced in a month's time, so I decided to bring her straight to a Walmart optical. Things were going on well, until the optician needed to take an additional measurement, which would involve holding a ruler up to her eyes and measuring the distance between the outer corner of one eye and the inner corner of the other.

    “Are you sure you need the measurement?” I asked. “She's really not cooperative when it comes to the eye-testing stuff.”

    “We definitely need to have it, we can't fill her prescription without it.” the optician said.

    But my daughter would not let the optician anywhere near her face with the small plastic ruler. She started yelling and crying, and we took her off to the side and promised we'd get ice cream afterward if she let the nice lady hold the ruler near her nose! The optician gave us the ruler, thinking we would have an easier time, but when my daughter knew we needed to hold the ruler near her face, which, in toddler logic, meant a life-or-death situation, she prevented us from getting anywhere near her.

    Finally, my husband and I agreed that one of us would have to hold her down and the other would take the measurement. I sat on the floor trying to hold her head still while my husband tried to get an accurate reading on that stupid ruler. Despite her struggle and scream, we finally got it. My daughter stopped crying three seconds later and went back to play as if nothing had happened.

    There is no version of this story where I feel comfortable us even if it was for her own good. I felt awful wondering, if magically know what to say to get her cooperation? The weeks spent with a special book about wearing glasses, telling her how great glasses were... I could feel tears welling up and I thought, “I can't cry. I'm sitting on the floor of a Walmart optical centre. I can't cry here.”

    And there it was the final thing I could not bear. It w already reduced me to sitting on the floor of a Walmart optical p toddler down to press a ruler against her face and do it for the packed Saturday audience of all the Walmart checkout counters. I cried. Big, shoulder-shaking sobs. Sitting right there on the floor of a Walmart, behind the optical counter.

    Five days later, the Walmart optical centre called. They said my daughter's glasses were ready for pickup and I should schedule an appointment with the optician so that we can have them properly fitted. I said I'd be picking up the glasses alone and we would do the fitting another day. She insisted that the fitting was crucial, to which I replied, “I don't know if you were working last Saturday, but my daughter is really not cooperating on this whole glasses thing. I'd prefer to just pick them up.” Silence. Then she said, “I was there last Saturday, I remember you. Absolutely, you can pick them up any time.”

Back in April 1939 and armed with $5,000 provided by the Rockefeller Foundation, professor Frank Cyr at Teachers College, Columbia University took a tour of ten states to make the research about school transportation problems. What he found was that many students had no dependable way to get to school and the ones who did often travelled in unsafe buses in the over 100,000 school areas.

Seeing a need to fix this problem, Cyr organised a meeting—one that would change the future of school buses forever. School officials and transportation experts met to set much-needed standards for buses, including those for colour, height and width as well as safety rules that hadn't been set before or that were different in every state.

There were many different bus colours in the US before this meeting; several areas even planned to have red, white and blue buses as a way of encouraging students to love their country. Cyr presented his new choice to education officials, a reported "50 shades( 色度) changing from lemon yellow to deep orange red". The matter was settled quickly. Yellow, or "National School Bus Glossy Yellow", was chosen because it was quite striking, making the school bus easy to be seen. Besides, it made the bold(黑体的), black writing on the side of each bus clear. (The bold, black writing gives information about each school area, telling students which school bus they could take during early morning and late afternoon hours.) Thirty-five states made the changes quickly, and every state took them on

board by 1974.

Being recognised as the "father of the yellow school bus", Frank Cyr has surely influenced your life if you ever rode a school bus or saw that noticeable colour pulling up to your stop on a dusky morning.

Superhuman artificial intelligence is already among us. Well, sort of. When it comes to playing games like chess and Go, or solving difficult scientific challenges like predicting protein structures, computers are well ahead of us. But we have one superpower they aren't close to mastering: mind reading.

Humans have a mysterious ability to reason the goals, desires and beliefs of others, a vital skill that means we can predict other people's actions and the consequences of our own. Reading minds comes so easily to us, though, that we often don't think to spell out what we want. If AIs are to become truly useful in everyday life, we have to give them this gift that evolution has given us to read other people's minds.

Psychologists refer to the ability to infer other's mental state as theory of mind. In humans, this ability starts to develop at a very young age. How to reproduce the competence in machines is far from clear, though. One of the main challenges is context. For instance, if someone asks whether you are going for a run and you reply "it's raining", they can quickly conclude that the answer is no. But this requires huge amounts of background knowledge about running, weather and human preferences. Moreover, whether humans or AI, the theory of mind is supposed to appear naturally from one's own learning process.

Yet we might still want AI to have a more human-like form of theory of mind. While letting AI form the theory of mind in their learning process is likely to lead to developing more powerful AI, plainly building in shared ways to represent knowledge may be crucial for humans to trust and communicate with AI.

It is important to remember, though, that the pursuit of machines with theory of mind is about more than just building more useful robots. It is also a stepping stone on the path towards a deeper goal for AI and robotics research: building truly self-aware machines. Whether we will ever get there remains to be seen, but we are on the path to learning to think about ourselves.