If you live in a big city, there are many things to drive youcrazy on your daily route, and it's not just overcrowded subway trains.

Vicky Zhao is a mainlander working in Hong Kong. For her, onething she can't put up with is people standing on the wrong side of theescalator（自动扶梯）in subwaystations. “Escalators help us move faster and save time. It isn't a place torest,” the 24-year-old says. “I often see tourists block the way with theirsuitcases or chatting on the escalators during rush hours. It annoys meto no end.”

Admitting she is not the patient type, Zhao says things are muchbetter in Hong Kong than in cities on the mainland where “stand right, walkleft” signs are often ignored.

The logic behind the “stand right, walk left” escalatoretiquette（礼仪）seems obvious.Even though you may want to catch your breath while you're transported up ordown, you should still consider others and leave enough space for people in ahurry, so that they can run and catch the train.

Many cities' escalators, including London's and Beijing's, usethe “stand right, walk left” system to speed up the flow of people.（Australia isan exception and you should stand on the left side instead.）But somecities discourage people from moving on escalators out of safety reasons. InHong Kong's subway stations there are regular announcements asking people to“stand still” on escalators. Even so, most people in this fast-paced cityobserve the “stand right, walk left” etiquette.

But the people who stand on escalators defend themselves bytelling the walkers not to be so impatient. The BBC quotes one stander assaying：“If the person is in such a rush, why not just take the stairs?Even when the escalator is packed and there's nowhere to move, I see these samepeople complaining about not being able to pass.

Whatever the escalator etiquette is in the place you live orvisit, do what most people are doing and always be mindful of others: leaveenough space between each other, don't stay at the end of the escalator, and ifsomeone is blocking your way, a simple “excuse me” is enough.

    Disposing (处理) of waste has been a problem since humans started producing it. As more and more people choose to live close together in cities，the waste disposal problem becomes increasingly difficult.

    During the eighteenth century，it was usual for several neighboring towns to get together to select a faraway spot as a dump site. People would transport household rubbish，rotted wood and old possessions to the site. Regularly some of the trash was burned and the rest was buried. The unpleasant sights and smells caused no problem because nobody lived close by. Factories and some other industrial sites also had waste to be disposed of. Those located on rivers often just poured the unwanted remains into the water. Others built huge burners with chimneys to deal with the problem.

    Several facts make these choices unacceptable to modern society. The first problem is space. Dumps(垃圾场)， are most needed in heavily populated areas. Such areas rarely have empty land suitable. Farm areas are refusing to accept rubbish from elsewhere，cheap land in major city areas to dispose wastes is nonexistent(不存在的). Awareness of pollution dangers has resulted in more strict rules of waste disposal. Pollution of rivers，ground water，land and air is a price people can no longer pay to get rid of waste. The amount of waste，however， continues to grow.

    Recycling efforts have become commonplace，and many towns require their people to take part. Even the most efficient recycling programs，however，can hope to deal with only about 50 percent of a city's reusable waste，so more people should be involved in recycling programs.

    Football, to me, is more than just a game. I have probably learned more than valuable lessons from it than from school.

    When I joined the team freshman year, I didn't realize what I was getting into. Even though I had been playing since fourth grade and knew it was hard work, nothing would prepare me for the effort I would put into football that year. We worked all summer in the weight room and ran on the track to get in physical and mental shape before the season.

    See, football is more of a mental sport than anything else, so running on the track wasn't only about getting in shape. We would push our minds by running as hard as we could even if we felt like we were going to pass out. At the beginning, I was immature（幼稚的）and only thought of myself, sometimes even giving up when I was tired or hurting. Then after the third game I had a season-ending injury. Imagine working all summer and then only being able to play three games! I needed an operation on my arm and at least five months to recover.

    After freshman year I decided that I would always give my best effort. Playing football in the college has taught me so much more than just what my tasks are on a particular play or how to block. I have learned to think about others first, and realized how important working hard is. Being with all my friends, even sweating and bleeding with them, really made us unite as a group of hard-working young men, who will succeed in life.

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    As Internet users become more dependent on the Internet to store information, are people remember less? If you know your computer will save information, why store it in your own personal memory, your brain? Experts are wondering if the Internet is changing what we remember and how.

    In a recent study, Professor Betsy Sparrow conducted some experiments. She and her research team wanted to know the Internet is changing memory. In the first experiment, they gave people 40 unimportant facts to type into a computer. The first group of people understood that the computer would save the information. The second group understood that the computer would not save it. Later, the second group remembered the information better. People in the first group knew they could find the information again, so they did not try to remember it.

    In another experiment, the researchers gave people facts to remember, and told them where to find the information an the Internet. The information was in a specific computer folder (文件夹). Surprisingly, people later remember the folder location (位置) better than the facts. When people use the Internet, they do not remember the information. Rather, they remember how to find it. This is called “transactive memory (交互记忆)”

According to Sparrow, we are not becoming people with poor memories as a result of the Internet. Instead, computer users are developing stronger transactive memories; that is, people are learning how to organize huge quantities of information so that they are able to access it at a later date. This doesn't mean we are becoming either more or less intelligent, but there is no doubt that the way we use memory is changing.

    "Everybody is a genius.But if you judge a fish by its ability to climb a tree,it will live its whole life believing that it is stupid."—Albert Einstein

    If you have a kid with special needs in the school system,chances are you have come across that saying hanging on a classroom wall.My five-year-old daughter Syona has cerebral palsy（脑瘫）and it means,combined with her communication and sight problems,that normal standard isn't always an accurate measure of her abilities.

    By now you have probably heard about Chris Ulmer,the 26-yearold teacher in Jacksonville,Florida,who starts his special education class by calling up each student individually to give them much admiration and a high-five.I couldn't help but be reminded of Syona's teacher and how she supports each kid in a very similar way.Ulmer recently shared a video of his teaching experience."I have seen their confidence increase rapidly."he said.All I could think was: how lucky these students are to have such good teachers.

    Syona's teacher has an attitude that can best be summarized in one word: awesome.Her teacher doesn't focus on what can't be done—she focuses on what can be done.Over the past several months,my husband Dilip and I have seen Syona's confidence increase tenfold.She uses words she wouldn't have thought of using before.She recently told me about her classmate's trip to Ecuador and was very proud when I understood her on the first try.

    I actually wonder what the influence would be if we did something similar to what Ulmer does with his students in our home.We've recently started our day by reminding each other of the good qualities we all possess.If we are reminded of our strengths on a regular basis,we will become increasingly confident about progress and success.

    Recently, many e-commerce platforms, including Didi Taxi, Ctrip, Fliggy, JD ad Taobao, have been uncovered that they are cheating their frequent customers. Their ways are pretty clever. When there are new users or conservative old users, they will give a quite appealing price to attract them into registering and buying goods. However, their big data is not that friendly to the stable users and frequent visitors. The system always offers them higher price for the same products or service. How does this happen? According to the data analysis, the system knows clearly that although they feel the price is high, they will finally pay the bill. By collecting and analyzing users' profiles, buying habits and other information, big data recommends the same products to different users with different prices.

Companies also try other ways to make money, making online consumption far more worrying. For example, video websites always offer 120 seconds' advertisements, which drives people crazy. And even if you pay for the membership to get rid of the ads, you have to “enjoy” 15-second “private” ads. By broadcasting them, companies make huge profits — second to the membership fees. Also, owning 100Mbps network, you still put up with the slow speed when you are downloading a song. You have no choice but to become a VIP when you seek high quality services. Users seem to be lambs(羊羔) among wolves. Even though they say,” Since you have money, I'll charge you more”, we can't do anything about it.

    It pains us that we haven't figured out a way to deal with the problem. The only thing we can do is replacing our iPhones with Android phones if we want to buy a membership card, and applying for new accounts if we want cheaper hotels. Not finding a way to fight back, we can't do anything but accept them passively.