If humans were truly at home under the light of the moon and stars, we would go in darkness happily, the midnight world as visible to us as it is to the vast number of nocturnal(夜间活动的) species on this planet. Instead, we are diurnal creatures, with eyes adapted to living in the sun's light. This is a basic evolutionary fact, even though most of us don't think of ourselves as diurnal beings. Yet it's the only way to explain what we've done to the night: We've engineered it to  receive us by filling it with light.

    The benefits of this kind of engineering come with consequences 一 called light pollution 一 whose effects scientists are only now beginning to study. Light pollution is largely the result of bad  lighting design, which allows artificial light to shine outward and upward into the sky. III-designed lighting washes out the darkness of night and completely changes the light levels 一 and light  rhythms — to which many forms of life, including, ourselves, have adapted. Wherever human light spills into the natural world, some aspect or life is affected.

    In most cities the sky looks as though it has been emptied of stars, leaving behind a vacant haze(霾) that mirrors our fear of the dark. We've grown so used to this orange haze that the original glory of an unlit nigh, - dark enough for the planet Venus to throw shadow on Earth, is wholly beyond our experience, beyond memory almost.

    We've lit up the night as if it were an unoccupied country, when nothing could be further form the truth. Among mammals alone, the number of nocturnal species is astonishing, Light is a powerful biological force, and on many species it acts as a magnet(磁铁). The effect is so powerful that scientists speak of songbirds and seabirds being “captured” by searchlights on land or by the light from gas flares on marine oil platforms. Migrating at night, birds tend to collide with brightly lit tall buildings.

    Frogs living near brightly lit highways suffer nocturnal light levels that are as much as a million times righter than normal, throwing nearly every aspect of their behavior out of joint including most other creatures ,we do need darkness. Darkness is as essential to our biological welfare, to our internal clockwork, as light itself.

    Living in a glare of our making,we have cut ourselves off from our evolutionary and cultural heritage—the light of the stars and the rhythms of day and night .In a very real sense light pollution causes us to lose sight of our true place in the universe, to forget the scale of our being, which is best measured against the dimensions of a deep night with the Milky Way—the edge of our galaxy arching overhead.

    In the movie Alice in Wonderland, Alice comes across a Cheshire cat and asks the cat which road she should take. The cat responds, “Well, that depends on where you're trying to get to.” Alice replies, “I don't know.” The cat responds, “Then any road will do.”

    You see, knowing where you're going increases your chances dramatically of getting there, and there is no better way of “GETTING THERE” than setting your goals for the upcoming year. Think of your goals as destinations and the action steps as your GPS guiding and directing you. If you are like many other people, for years you have resisted the need to set goals and even laughed at the thought that setting goals and, even more importantly, committing them to writing have positive effects on your life. However, a closer look might convince you that setting goals is a sensible thing to do.

    In 1979, a class of Harvard MBA students was asked: Have you set clear, written goals for your future and made an action plan to accomplish them? The following will astonish you. Only 3 percent of the class had written goals and a plan in place, 13% just had goals, and an amazing 84% had no specific goals at all.

    Ten years later the numbers of the class were interviewed once again and the following results will no doubt give the reason for our setting goals. The findings were that the 13% who had goals were earning, on average, twice as much as the 84% who had no goals at all. And the 3 percent who had clear, written goals with a plan to achieve them were achieving ten times as much as the entire 97% combined.

    Goal setting will increase your chances of arriving successfully at your destination. Remember, always set SMART goals. Goals should be: Specific, Measurable, Attainable, Relevant, and Time-bound!

    Harvard University in the United States has been ranked as the university with the best “reputation” in the world.

    The Times Higher Education magazine has listed 200 top universities all over the world based on how they are regarded by a group of international college teachers. That is to say, the list measures how universities are regarded, rather than how they actually performed.

    “A subjective, word-of-mouth (口碑的) quality such as “reputation” has genuine economic value for universities,” said Simon Marginson, professor of higher education at the University of Melbourne in Australia.

    “Reputation is not just an impression, though it might not be as reliable as performance by objective indicators (客观指标),” said Prof Marginson.

    Based on the views of 13,000 college teachers around the world, it confirms the power of the big US universities, which dominate this list. Seven of the top 10 are US universities, headed by Harvard and Massachusetts Institute of Technology (MIT). Furthermore, 14 of the top 20 are from the US. Cambridge is the highest ranking UK university in the list, in third place, with Oxford ranked as sixth.

    “For students applying to university, reputation might be hard to quantify, but was an important part of the attractiveness,” said the president of Cambridge University's students' union, Rahul Mansigani.

    “Reputation makes a huge difference. If there is an idea that somewhere is great, it will get lots of good people applying whether it's true or not. Factors such as a sense of history and the presence of outstanding college teachers were part of the reputation of Cambridge,” he said.

    So many of us hold on to little resentments that may have come from an argument, a misunderstanding, or some other painful event. Stubbornly, we wait for someone else to reach out to us—believing this is the only way we can forgive or rekindle a friendship or family relationship.

    An acquaintance of mine, whose health isn't very good, recently told me that she hadn't spoken to her son in almost three years. She said that she and her son had had a disagreement about his wife and that she wouldn't speak to him again unless he called first. When I suggested that she be the one to reach out, she resisted initially and said, "I can't do that. He's the one who should apologize." She was literally willing to die before reaching out to her only son. After a little gentle encouragement, however, she did decide to be the first one to reach out. To her amazement, her son was grateful for her willingness to call and offered an apology of his own. As is usually the case when someone takes the chance and reaches out, everyone wins.

    Whenever we hold on to our anger, we turn "small stuff" into really "big stuff" in our minds. We start to believe that our positions are more important than our happiness. They are not. If you want to be a more peaceful person you must understand that being right is almost never more important than allowing yourself to be happy. The way to be happy is to let go, and reach out. Let other people be right. This doesn't mean that you're wrong. Everything will be fine. You'll experience the peace of letting go, as well as the joy of letting others be right.

    You'll also notice that, as you reach out and let others be "right," they will become less defensive and more loving toward you. They might even reach back. But if for some reason they don't, that's okay too. You'll have the inner satisfaction of knowing that you have done your part to create a more loving world, and certainly you'll be more peaceful yourself.

    If you want to become a fluent English speaker you should take some advice. There are four skills in learning English. They are reading, listening, speaking, and writing. The most important thing you must remember is that if you want to improve your speaking and writing skills, you should first master the skills of reading and listening.

    Read as much as you can. But your reading must be active. It means that you must think about the meaning of the sentence, the meaning of the unfamiliar(不熟悉) words, etc. There is no need for you to pay much attention to grammars or try to understand all the unfamiliar words you come across, but the fact that you see them for the first time and recognize them whenever you see them, for example, in other passages or books, is enough. It would be better to prepare yourself a notebook so you can write down the important words or sentences in it.

    As for listening, there are two choices: besides reading, you can listen every day for about 30 minutes. You can only pay attention to your reading and become skillful at your reading, then you can catch up on your listening. Since you have lots of inputs in your mind, you can easily guess what the speaker is going to say. This never means that you should not practice listening.

    For listening you can listen to cartoons or some movies that are specially made for children. Their languages are easy. Or if you are good at listening you can listen to VOA or BBC programs every day. Again the thing to remember is being active in listening and preferably taking some notes.

    If you follow these pieces of advice, your speaking and writing will improve quickly, and you can be a fluent English speaker one day.

    Consumer electronics once again topped the list of the most wanted gifts this holiday season.

    "Seventy-six percent of consumers who plan to buy holiday gifts say that they will spend money or buy at least one technology product; definitely a solid vote of confidence for technology."

    Steve Koenig is with the Consumer Electronics Association. He says the group's latest research also shows that Americans this year are spending more on technology products. "Here in 2012, $252 on average the technology spend for consumers this year."

    From tablet computers to smart phones, American shoppers have been lining up to get the newest and coolest electronic devices on the market. There are more choices today than ever before. "It's kind of hard to make a decision."

    Tablet computers are one of the best-selling products this year. Brian Tong is Senior Editor of CNET.com. The website reports on tech news and examines the latest electronic products. He says the Apple iPad Mini is one of the most popular tablets. Its starting price is $329. One of Apple's biggest competitors is the Google Nexus 7. It starts at $199.

    "Its hardware is more powerful than what's in the iPad Mini, but also it offers you a lot of things like maps that work better than Apple's maps.

    But Brian Tong says there is one reason why people may like the iPad Mini more than the Nexus 7. "If you just want to read books and surf the Internet, you don't really need to get an iPad Mini, but if you want the largest robust group of apps (应用软件) that's where the iPad and Apple's ecosystem shines the most."

    Elman Chacon is with the electronics store Best Buy. He says another hot product this season is smart cameras. They connect to the Internet through Wi-Fi. This makes it easy for users to email or upload photographs directly from the camera." You can literally take a picture and upload it into your Facebook in a matter of seconds. These things are pretty cool because they do a lot of things."

    Streaming media boxes also connect to the Internet. People are able to watch web content such as movies and YouTube videos on their televisions. Another popular item is wireless speaker systems. The newest ones work with any device that has Bluetooth technology, including smart phones, laptops and tablets.