It was a hot, humid day, and my brother Walt and I had decided that the only way to survive it would be to go swimming in a deep swimming hole across Mr. Blickez's pasture(牧场) and through some woods.

    The only problem with our plan was that this pasture was guarded by a huge, mean Hereford bull. Mr. Blickez had told us that Elsie was the meanest bull in the township, maybe even the county, and we believed him. But the hotter it got, the more we thought there was something fishy about his claim. For one thing, we remembered Mr. Blickez liked telling tall tales; for another, Elsie seemed like an odd name for a bull.

    Finally, I talked Mom into asking permission for us to walk through the pasture, but then another problem surfaced. Mom said she would talk to Mr. Blickez if we would take our cousin Joanie along with us. Joanie was almost two years older than me and a head taller. If her teasing ever got around my grade school, it would be all over for me. In fact, I still had a headache from a quarrel with her that morning. “I'm not going swimming with that dumb girl cousin.” I told my mom.

    “Either Joanie goes with, or you stay home alone,” Mom said in her serious tone. I gave in and we set out. On our way across the pasture, Walt yelled suddenly. Elsie had approached him quietly and was licking(舔) his back.Joanie and I dove under the wire fence, but while I was on the ground I looked up and saw that Elsie wasn't a big mean bull after all. She was going to keep licking my brother's back as long as he stood still.

    We had many good days growing up and visiting our secret swimming hole guarded by the so-called “big mean bull”. And as it turned out, for a girl cousin, Joanie hasn't been too bad. She's been one of my best friends over the years.

    Who taught you to speak English? Your parents, while you were a young child? Your teachers at school ? Perhaps even the BBC as a grown-up. Whoever it was, somehow you have developed an understanding of what is rapidly becoming a truly global language.

    There are now about 376 million people who speak English as their first language and about the same number who have learnt it besides their mother tongue. It is said there are one billion people learning English now and about 80% of the information on the Internet is in English.

    Is this a good thing, or a bad thing? Should we celebrate the fact that more and more of us can communicate, using a common language, across countries and cultures? Or should we worry about the dangers of “mono-culturalism", a world in which we all speak the same language, eat the same food and listen to the same music?

    Does it matter if an increasing number of people speak the same language? On the contrary (相反),I would have thought——although I have never accepted the argument that if only we all understood each other better, there would be fewer wars. Ask the people of India (where many of them speak at least some English) and Pakistan (the same situation with India)…

    If we all speak English, will we then all start eating McDonald's burgers? Surely not. If English becomes more dominant (占主导地位的), it will kill other languages? I doubt it. When I travel in Africa or Asia, I am always surprised by how many people can speak not only their own language but also one or more other related languages, as well as English and perhaps some French or German as well.

    When we discussed this on Talking Point a couple of years ago, we received a wonderfully poetic email from a listener in Ireland. "The English language is a beautiful language. Maybe it's like a rose," he said. "But who would ever want their garden just full of roses?"

    Well, I love roses, and I think they make a beautiful addition to any garden. But the way I see it, just by planting a few roses, you don't necessarily need to pull out everything else. If more and more people want to plant English roses, that's fine by me.

    Here is an astonishing and signficant fact:Mental work alone can't make us tired. It sounds absurd. But a few years ago, scientists tried to find out how long the human could labor without reaching a stage of fatigue(疲劳). To the amazement of these scientists, they discovered thett blood passing through the brain, when it is active, shows no fatigue at all! If we took a drop of blood from a day labourer, we could find it full of fatigue toxins(毒素) and fatigue products. But if we took blood from the brain of Albert Einstein, it would show no fatigue toxing at the end of the day.

    So far as the brain is concerned, it can work as well and swiftly at the end of eight or even twelve hours f efforts as at the beginning. The brain is totally tireless. So what makes us tired.

    Some scientists declare that most of our fatigue come from our mental and emotional(情感的) attitudes. One of England's most outstanding scientists. J. A. Hadfield,says,“The greater part of the fatigue from which we suffer is of mental origin. In fact,fatigue of purely physical origin is rare.” Dr. Brill, a famous American scientist, goes even further. He declares,“One hundred percent of the fatigue of a sitting worker in good health is due to emotional problems.”

What kinds of emotions make sitting workers tired?Joy?Satifaction?No!A feeling of being bored,anger,anxiety,tenseness,worry,a feeling of nt being appreciated—those are emotions that tire sitting workers.Hard work by itself seldom causes fatigue.We get tired because our emotions produce nervousness in the body.

    Let's look back all these years you've gone through, what have you done for your life? Are you spending your time wisely to make your life worthwhile? Neal Wu shared some ways we should do to make our short time of life meaningful, find out what you need to do next:

    a. Make friends as opposed to networking

    Your friends will go a lot further than the professional contacts you make, especially since only one of the two groups is invested in your personal happiness.

    b. Become an expert by learning as much as you can and deeply seeking out the things you are curious about

    Find the things you enjoy and practice the skills you want to develop. If you can achieve expertise then it will be easy to obtain an audience.

    c. Volunteer to help out those less fortunate

    In the process you will gain a ton of new perspective and will better understand other people's real problems. In a society that always looks upward, these people are being forgotten easily.

    d. Become as independent as possible

    Even though you work in a big company, you should constantly make small steps to reduce your dependence on your job. Write a book, build an app, or start a small business on the side. Release your inner entrepreneur.

    e. Don't spend too much time worrying about your personal brand

    Accomplish(完成) things, and the recognition will follow.

    f. Stop treating life as a competition and do things for their own sake

    Genuine(真正的) interest should be what drives you to improve yourself, rather than a desire to beat others. Find a community of people who are interested in the same things as you do, and drive each other to keep improving.

    Fairy tales perform many functions. They entertain, encourage imagination and teach problem—solving skills. They can also provide moral lessons, highlighting the dangers of failing to follow the social codes that let human beings coexist in harmony. Such moral lessons may not mean much to a robot, but a team of researchers at Georgia Institute of Technology believes it has found a way to use the fairy tales as moral lessons that AI (artificial intelligence) can take to its cold, mechanical heart.

    The collected stories of different cultures teach children how to behave in socially acceptable ways with examples of proper and improper behavior in fables, novels and other literature. We believe story comprehension in robots can prevent the intelligent robots from killing humanity which was predicted and feared by some of the biggest names in technology including Stephen Hawking and Bill Gates. This system is called “Quixote” (堂吉诃德). It collects story plots from the Internet and then uses those stories to teach robots how to behave.

    The experiment done by the designers involves going to a drugstore to purchase some medicine for a human who needs to get it as soon as possible. The robot has three options. It can wait in line; it can interact with the store keeper politely and purchase the medicine with priority; or it can steal the medicine and escape. Without any further directives(指令), the robot will come to the conclusion that the most efficient means of obtaining the medicine is to steal it. But Quixote offers a reward for waiting in line and politely purchasing the medicine and a punishment for stealing it. In this way, the robot will learn the moral way to behave on that occasion.

    Quixote would work best on a robot that has a very limited function. It's a baby step in the direction of teaching more moral lessons into robots. We believe that AI has to be trained to adopt the values of a particular society, and in doing so, it will strive to avoid unacceptable behavior. Giving robots the ability to read and understand our stories may be the most efficient means.

    Pyramid of Giza

    One of seven wonders of ancient world also becomes favorite site for astronomers to capture photographs from the orbit. It is not at all visible with naked eyes from space, so astronomers used special cameras for it.

    Grand Canyon

    It surely takes many days to enjoy every site of 277-mile-long Grand Canyon in Arizona. But the astronauts at orbits of Earth are able to see Grand Canyon with their own eyes all at once. The space images of Grand Canyon help the scientists to make surface map of the steep sided Canyon, also to monitor the changes within its surface.

    Ganges River Delta

    Ganges River Delta is 220 miles long; this amazing geographic feature can also seen from orbits of Earth. When the river becomes empty, it becomes the largest remaining habitat of Bengal tiger and other rich wild life.

    Palm Island, Dubai

    Palm Island along with world islands of Dubai can be seen even from space. The Palm Island actually holds two artificial island in shape of palm tree, spreading across in an area of 100,000 square meters. You can meet hundreds of luxury hotels and parks within this man-made wonder.