A qualified doctor who rarely practiced but instead devoted his life to writing．He once said: “Medicine is my lawful wife, and literature is my lover．” Russian writer Anton Pavlovich Chekhov, was a great playwright and one of the masters of the modern short story．

    When Chekhov entered the Moscow University Medical School in 1879, he started to publish hundreds of comic short stories to support his family．After he graduated, he wrote regularly for a local daily newspaper．

    As a writer he was extremely fast, often producing a short story in an hour or less．Chekhov's medical and science experience can be seen through the indifference (冷漠) many of his characters show to tragic events．In 1892, he became a full time writer and published some of his most memorable stories．

    Chekhov often wrote about the sufferings of life in small town Russia．Tragic events control his characters who are filled with feelings of hopelessness and despair．

    It is often said that nothing happens in Chekhov's stories and plays．He made up for this with his exciting technique for developing drama within his characters．Chekhov's work combined the calm attitude of a scientist and doctor with the sensitivity(敏感) of an artist．

    Some of Chekhov's works were translated into Chinese as early as the 1940s．One of his famous stories, The Man in a Shell, about a school teacher's extraordinarily orderly life, was selected as a text for Chinese senior students．

    On a cold winter day, many years ago, a French art teacher named Pierre Chevalier got on a train in Lyon to go to Paris. When he started his journey, he didn't know that it was the beginning of almost 40 years of accidents and near death experiences.

    During the journey, the train fell into an icy river, killing 12 passengers. Chevalier managed to swim back to the river bank. He only had a broken leg.

    Two years later, Chevalier was on a plane from Paris to Moscow when a door suddenly opened and he fell out. A few minutes later, the plane crashed(坠毁); 27 people were killed. Chevalier was so lucky that he landed in a haystack(干草堆).

    A few years later, he was hit by a bus, but again had no serious injuries. Then a year after that, he was driving on a mountain road when he saw a truck coming straight at him. He drove the car off the road, jumped out, landed in a tree—and watched his car fall 100 metres down the mountain.

    “There are two ways you can look at it,” Chevalier said. “I'm either the world's unluckiest man, or the world's luckiest.” When a reporter asked Chevalier what he thought, he chose the “luckiest” one.

    Two years ago, aged 71, Chevalier bought his first lottery ticket(彩票) in 50 years and won more than 2 million.

    After this, a TV company in America said they wanted him to make an advertisement. At first he accepted, but then he changed his mind. Chevalier said he wouldn't fly to Los Angeles for the filming, because he didn't want to push his luck. Who knows? If he had accepted the invitation, maybe he would have had another accident. But Mr Chevalier is a lucky man. If he'd had another accident, he probably would have survived that too!

    Diet Coke, diet Pepsi, diet pills, no-fat diet, vegetable diet… We are surrounded by the word "diet" everywhere we look and listen. We have so easily been attracted by the promise and potential of diet products that we have stopped thinking about what diet products are doing to us. We are paying for products that harm us psychologically and physically.

    Diet products significantly weaken us psychologically. On one level, we are not allowing our brain to admit that our weight problems lie not in actually losing the weight, but in controlling the consumption of fatty, high-calorie, unhealthy foods. Diet products allow us to jump over the thinking stage and go straight for the scale(秤)instead. All we have to do is to swallow or recognize the word "diet" in food labels.

    On another level, diet products have greater psychological effects. Every time we have a zero-calorie drink, we are telling ourselves without our awareness that we don't have to work to get results. Diet products make people believe that gain comes without pain, and that life can be without resistance and struggle.

    The danger of diet products lies not only in the psychological effects they have on us, but also in the physical harm that they cause. Diet foods can indirectly harm our bodies because consuming them instead of healthy foods means we are preventing our bodies from having basic nutrients. Diet foods and diet pills contain zero calorie only because the diet industry has created chemicals to produce these wonder products. Diet products may not be nutritional, and the chemicals that go into diet products are potentially dangerous.

    Now that we are aware of the effects that diet products have on us, it is time to seriously think about buying them. Losing weight lies in the power of minds, not in the power of chemicals. Once we realize this, we will be much better able to resist diet products, and therefore prevent the psychological harm that comes from using them.

    A robot created by Washington State University (WSU) scientists could help elderly people with dementia (痴呆) and other limitations live independently in their own homes.

    The Robot Activity Support System or RAS, uses sensors installed in a WSU smart home to determine where its residents are, what they are doing and when they need assistance with daily activities. It navigates (定位) through rooms and around obstacles to find people on its own, provides video instructions on how to do simple tasks and can even lead its owner to objects like their medication or a snack in the kitchen.

"RAS combines the convenience of a mobile robot with the activity detection technology of a WSU smart home to provide assistance in the moment, as the need for help is detected," said Bryan Minor, a postdoctoral researcher in the WSU School of Electrical Engineering and Computer Science.

    Currently, an estimated 50 percent of adults over the age of 85 need assistance with every day activities such as preparing meals and taking medication and the annual cost for this assistance in the US is nearly $2 trillion. With the number of adults over 85 expected to triple by 2050, researchers hope that technologies like RAS and the WSU smart home will relieve some of the financial strain on the healthcare system by making it easier for older adults to live alone.

    RAS is the first robot researchers have tried to incorporate into their smart home environment. They recently published a study in the journal Cognitive Systems Research that demonstrates how RAS could make life easier for older adults struggling to live independently.

    "While we are still in an early stage of development, our initial results with RAS have been promising," Minor said. "The next step in the research will be to test RAS' performance with a group of older adults to get a better idea of what prompts, video reminders and other preferences they have regarding the robot."

    Sales of Apple's new iPhone 11 in China began on Friday, but were met with a cooler welcome from customers than in previous years. Unlike in previous years, no long lines were seen outside Chinese shops on Friday for the new iPhone, and the product release (发布) only made the headlines in a few media.

    Huawei released its Mate 30 smartphone series on Thursday night. Its new devices(设备) have won consumers' hearts at home and abroad. Many compared it with Apple's new iPhone 11, saying that beats the new iPhone because of innovation and quality. One customer named Zhao Kai, an IT specialist who pre-ordered a Mate 30 Pro on Friday, said that he chose Mate 30 without hesitation. Zhao said, "It's clear that Huawei's new phone with its advanced 5G mode would lead the future global telecommunications market, too."

    In contrast with iPhone 11's poor sales, Chinese netizens (网民) have joined in discussions on Mate 30 and iPhone 11. An online poll on the Mate 30 and iPhone 11 on Weibo on Friday showed that more than 60 percent of netizens chose the Mate 30, while less than 20 percent chose the iPhone 11. Many chose Huawei as a result of its technology.

    Overseas customers also joined in the heated discussions on Huawei's new flagship devices on sites. On Twitter, many netizens said "nice", "best phone ever" and "my favorite one" on Huawei's Twitter account. Some netizens in countries like the UK, the Netherlands and Argentina asked when Huawei's new devices would be released in their countries.

From a young age, Michael Platt loved two things: the Rev. Martin Luther King, Jr. and cupcakes. He imagined ways he too could fight for justice. He memorized figures about income inequality and childhood hunger. But he also spent afternoons at his home computer, amazed by YouTube bakers who made perfect cupcakes.

When his parents gave him a pair of Toms shoes for Christmas three years ago, Michael saw a way to connect his twin passions. At age 11, he founded a bakery that operates on the Toms one-for-one model: For every cupcake, cake or cookie that Michael sells, he donates another to the homeless and hungry. Twice a month, he heads to locations to pass out goodies. Michael, now 13, said he especially enjoys handing out cupcakes to kids.

"I know I like cupcakes, but also cupcakes are part of a child's childhood so they should get them," said Michael, noting that he always eats one with whippedicing (打发的糖霜) on his birthday.

Michael calls his baking business Michaels Desserts. He left out the apostrophe (撇号) as a reminder that he is baking for others, not himself. "I always wanted to have a purpose for what I do." he said. "It's all about helping people— not just having a purpose for yourself, but thinking about, 'How does this touch other things? "

When he started the bakery, he knew that he wanted his business to do more than make money. That's why the intention of Michaels Desserts is fighting hunger and giving back, which Michael accomplishes through his giveaways. Michael hopes his cupcakes inspire others to work for social equality.

Sometimes, Michael admits, he grows tired of being in the kitchen. Then he remembers the homeless boy he met once while handing out cupcakes. A couple of days afterward, the boy's father messaged Michael on Facebook to say that his son, encouraged by Michael's example, now desired to become a baker.

"That inspired me," Michael said. He smiled and looked down.