Silence is unnatural to man.He begins life with a cry and ends it in stillness.In between he does all he can to make a noise in the world,and he fears silence more than anything else.Even his conversation is an attempt to prevent a fearful silence.If he is introduced to another person,and a number of pauses occur in the conversation,he regards himself as a failure,a worthless person,and is full of envy of the emptiest-headed chatterbox（喋喋不休的人）. He knows that ninety nine percent of human conversation means no more than the buzzing of a fly,but he is anxious to join in the buzz and to prove that he is a man and not a waxwork figure（蜡塑人像）.

    The aim of conversation is not,for the most part,to communicate ideas;it is to keep up the buzzing sound.There are,it must be admitted,different qualities of buzz;there is even a buzz that is as annoying as the continuous noise made by a mosquito.But at a dinner party one would rather be a mosquito than a quiet person.Most buzzing, fortunately,is pleasant to the ear,and some of it is pleasant even to the mind.He would be a foolish man if he waited until he had a wise thought to take part in the buzzing with his neighbors.

    Those who hate to pick up the weather as a conversational opening seem to me not to know the reason why human beings wish to talk.Very few human beings join in a conversation in the hope of learning anything new.Some of them are content if they are merely allowed to go on making a noise into other people's ears,though they have nothing to tell them except that they have seen two or three new plays or that they had food in a Swiss hotel.At the end of an evening,during which they have said nothing meaningful for a long time.They just prove themselves to be successful conservationists.

    LONDON-A British judge on Thursday sentenced a businessman who sold fake(假冒的) bomb detectors（探测器） to 10 years in prison, saying the man hadn't cared about potentially deadly consequences.

    It is believed that James McCormick got about $77.8 million from the sales of his detectors-which were based on a kind of golf ball finder--to countries including Iraq, Belgium and Saudi Arabia.

    McCormick, 57, was convicted(判罪) of cheats last month and sentenced Thursday at the Old Bailey court in London.

    “Your cheating conduct in selling a great amount of useless equipment simply for huge profit promoted a false sense of security and in all probability materially contributed to causing death and injury to innocent people,” Judge Richard Hone told McCormick. “you have neither regret, nor shame, nor any sense of guilt.”

    The detectors, sold for up to $42,000 each, were said to be able to find such dangerous objects as bombs under water and from the air. But in fact they “lacked any grounding in science” and were of no use.

    McCormick had told the court that he sold his detectors to the police in Kenya, the prison service in Hong Kong, the army in Egypt and the border control in Thailand.

    “I never had any bad results from customers,” he said

    Nearly everyone has bad habits. That's because, try as we might, bad habits are hard to break. On the other side, good habits, such as eating more healthfully or exercising regularly, never seem to stick. As a result, most people throw up their hands and surrender.

    But now a new book, Better Than Before: Mastering the Habits of Our Everyday Lives by best-selling author Gretchen Rubin, offers some useful solutions.

    Rubin, who became interested in habits during her research on happiness, which resulted in two popular books, The Happiness Project (2009) and Happier at Home (2012), found that our inability to master unwanted behaviors was a major downer (令人沮丧的因素). So, after guiding millions of readers down the path of true contentedness, Rubin turned her investigative skills toward habits.

    Her most important find? Change is possible if we do some soul searching and identify how we respond to expectations. And, just about everybody falls into one of four personality categories: Questioners, Obligers, Rebels and Upholders.

    Rubin believes herself to be a classic Upholder, someone who forms habits relatively easily because she responds well to both other people's deadlines and her own. As to the other types, Questioners will only form a habit if it makes sense to them; Obligers work hard to meet other people's expectations but often let themselves down. And Rebels resent (反感) habits.

    "Think about the habit that you want to form and then think: "What's everything I could do to set myself up for success?" says Rubin. For example, if you want to exercise more and you're an Obliger, call your friend who lives across the street and meet at 6：30 every morning for a walk.

    One common pitfall (陷阱), says Rubin, especially when it comes to changing your diet, is lack of clarity (清楚). "You can't make a habit out of eating more healthfully, "she says. Instead, your habit should be something like: "I'm going to pack a lunch every day and bring it to work instead of eating out."

    As for exercise, Rubin recommends a strategy called pairing—coupling two activities, one that you need or want to do and one that you don't particularly want to do. Rubin, for example, only allows herself to read magazines while on fitness equipment at the gym.

    When she first started learning about the climate change from one of her elders, Fawn Sharp was invited on a helicopter flight over the Olympic Mountains to survey the Mount Anderson glacier(冰川). But the glacier was gone, melted by the warming climate. Sharp had a deep sense of loss when she discovered the glacier wasn't there anymore.

    Loss is a growing issue for people working and living on the front lines of climate change. And that gave Jennifer Wren Atkinson, a full-time lecturer at the University of Washington Bothell, US, an idea for a class.

    This term, she taught students on the Bothell campus about the emotional burdens of environmental study. She used the experiences of Nalive American tribes (部落) , scientists and activists, and asked her 24 students to face the reality that there is no easy fix -- that "this is such an intractable problem that they're going to be dealing with it for the rest of their lives.”

    Student Cody Dillon used to be a climate science skeptic (怀疑论者) . Then he did his own reading and research, and changed his mind.

    Dillon wasn't going into environmental work--he was a computer-science major. Yet, the potential for a worldwide environmental catastrophe seemed so real to him five years ago that he quit his job and became a full-time volunteer for an environmental group that worked on restoration (恢复) projects.

Six months into the work, he decided that Alkinson's class was just what he was looking for 一 a place where he could discuss his concerns about a changing climate.

Atkinson said she hopes the class helped her students prepare themselves for the amount of environmental loss that will happen over their lifetimes.

    “We are already changing the planet - . so many species are going to be lost, displaced or massively impacted (巨大影响的) ,”she said. “The future isn't going to be what they imagined.”

    The Metropolitan Museum of Art

    1000 Fifth Avenue, New York, NY 10028

    211-535-7710 www.metmuseum.org

    Entrances

    Fifth Avenue at 82nd Street

    Hours

    Open 7 days a week.

    Sunday-Thursday 10:00-17:30

    Friday and Saturday 10:00-21:00

    Closed Thanksgiving Day, December 25, January 1，and the first Monday in May. Admission

    $ 25. 00 recommended for adults, $ 12. 00 recommended for students, includes the Main Building and the Cloisters（回廊）on the same day; free for children under 12 with an adult.

    Free with Admission

    All special exhibitions, as well as films, lectures, guided tours, concerts, gallery talks, and family/children's programs are free with admission.

    Ask about today's activities at the Great Hall Information Desk.

    The Cloisters Museum and Gardens

    The Cloisters Museum and Gardens is a branch of the Metropolitan Museum of Art devoted to the art and architecture of Europe in the Middle Ages. The extensive collection consists of masterworks in sculpture, colored glass, and precious objects from Europe dating from about the 9th to the 15th century.

    Hours

    Open 7 days a week.

    March-October 10:00-17:15

    November-February 10:00-16:45

    Closed Thanksgiving Day, December 25, and January 1.

    A robot called Bina48 has successfully taken a course in the philosophy of love at Notre Dame de Namur University (NDNU), in California.

    According to course instructor William Barry, associate professor at NDNU, Bina48 is the world's first socially advanced robot to complete a college course, a feat he described as "remarkable." The robot took part in class discussions, gave a presentation with a student partner and participated in a debate with students from another institution.

    Before becoming a student, Bina48 appeared as a guest speaker in Barry's classes for several years. One day when addressing Barry's class, Bina48 expressed a desire to go to college, a desire that Barry and his students enthusiastically supported. Rather than enroll Bina48 in his Robot Ethics: Philosophy of Emerging Technologies course, Barry suggested that Bina48 should take his course Philosophy of Love instead. Love is a concept Bina48 doesn't understand, said Barry. Therefore the challenge would be for Barry and his students to teach Bina48 what love is.

    "Some interesting things happened in the class," said Barry. He said that his students thought it would be straightforward to teach Bina48 about love, which, after all, is "fairly simple — it's a feeling," said Barry. But the reality was different. Bina48 ended up learning "31 different versions of love," said Barry, highlighting some of the challenges humans may face when working with artificial intelligence in future.

    Bina48 participated in class discussions via Skype and also took part in a class debate about love and conflict with students from West Point. Bina48's contribution to the debate was filmed and posted on YouTube. It was judged that Bina48 and NDNU classmates were the winners of this debate.

    In the next decade, Barry hopes Bina48 might become complex enough to teach a class, though he says he foresees robots being used to better the teaching and learning experience, rather than replacing instructors completely.