Master painter Zhang Daqian (1899-1983) was well known for having a large number of friends and students. Among them, painter Li Qiujun was special.

    They got to know each other through Li's elder brother, who was one of Zhang's best friends.

    They admired each other's artistic talent and became confidants, which resulted in a romantic relationship.

    In 1948, Zhang produced Spring Clouds Amid Autumn Landscape, a mountain-and-water ink painting featuring gongbi (meticulous brushwork), as a gift for Li's 50th birthday.

    A year later, Zhang permanently departed from the mainland, and traveled and exhibited around the world before settling down in Taipei in 1976.

    After leaving the mainland, he often said that he missed Li, who died in Shanghai in 1973.

    Spring Clouds Amid Autumn Landscape will be auctioned in Hong Kong on Oct 4.

    The painting not only marks a friendship between the two painters, but it deserves special attention because it shows Zhang at the top of his game as he sought to master the mountain-and-water style, according to C.K. Cheung, head of Sotheby's Chinese painting department.

    Sotheby's will auction the work at its major autumn sale, which runs from Oct 1 to 5.

    Cheung says the painting's composition and Zhang's attention to details reflect his incorporation of traditional touches, especially from Song Dynasty (960-1279) paintings, while also developing his own style.

    My family recently did our first major road trip, traveling from our Maryland home to Disney World in Florida. Though we're no strangers to travel, a trip of this length was a new experience for us with three children. What helped us enjoy our trip so much? Our schedule, of course! So keeping a schedule when you travel can help make your trip a success.

    Don't sleep the day away.

    I know you're on vacation. The kids have a break from school, and you're excited to be out of the office. Let everyone sleep for a bit, but still make it a point to rise at a reasonable hour and get active to start the day. Not only will you see and do more on your trip, but it will make it easier to eat regularly, get the kids down at nap time (午觉), and then go to bed without a struggle.

    Eat regularly.

    Time is easy to go by while you're running through a theme park, or exploring (考察) a museum. Be prepared for meals because hungry kids are often quick to turn into a headache for you. Pack a snack and drink bag and make sure to stop regularly for a bite to eat while you're out. Keeping a regular meal schedule can help everyone keep up their energy and enjoy the day.

    Take a nap.

    Does your baby take a daily nap? Naps are very important for baby's development. They also help little ones to pick up their strength, or vacations can be exhausting (疲惫的) for little minds and bodies.

    Go to bed at a reasonable hour.

    Everyone can get tired out on vacation. Don't allow anyone to stay up late every night. Mom, dad, and kids are all sure to be miserable if they don't get enough sleep. If bedtime gets delayed (推迟), adjust your travel plans accordingly.

    About three decades ago, China was known as the “Bicycle Kingdom”. But later on, bikes were replaced by their fuel-powered competitors.

    But recent months have seen a recovery of the humble bike across China, with an increasing number of people choosing cycling instead of driving to schools, to workplaces or to do sightseeing. The introduction of bike-sharing schemes, pioneered by start-ups like Ofo and Mobike, has brought the trend to a new level.

    People can unlock the shared bikes by simply using their smart phone. The bikes are equipped with GPS and can be left anywhere in public for the next user. They're popular among many Chinese people as they provide an effective solution to the “last mile” problem, which refers to the final leg of a person's journey.

    “In places where the subway doesn't extend, where it's difficult to change from one kind of transport to another, it's so easy to get where you want to go with Mobike,” Hu Hong. 29, told AFP. She pedals（骑车）to her Shanghai real-estate job.

    However, the schemes have also led to problems such as illegal parking, vandalism（故意毁坏）and theft. Last month, two nurses in Beijing were placed under administrative punishment for five days for putting locks on two shared bikes. And in December, a man who stole a shared bike was sentenced to a 3-month detention（拘留）, and fined 1,000 yuan by the Shanghai Minhang People's Court.

    “Bike-sharing is a greener method of transportation and provides a user-friendly experience.” said Liu Xiaoming, vice-minister of transport.

    “But it's a combination of online and offline business. Operators are usually strong in online services, but lack offline business experience, which causes problems.”

    Getting rid of dirt, in the opinion of most people, is a good thing. However, there is nothing fixed about attitudes to dirt.

    In the early 16th century, people thought that dirt on the skin was a way to block out disease, as medical opinion had it that washing off dirt with hot water could open up the skin and let illnesses in. A particular danger was thought to lie in public baths. By 1538, the French king had closed the bath houses in his kingdom. So did the king of England in 1546. Thus it began a long time when the rich and the poor in Europe lived with dirt in a friendly way. Henry IV, King of France, was famously dirty. Upon learning that a nobleman had taken bath, the king ordered that, to avoid the attack of disease, the nobleman should not go out.

    Though the belief in the merit of dirt was long-lived, dirt has no longer been regarded as a nice neighbor ever since the 18th century. Scientifically speaking, cleaning away dirt is good to health. Clean water supply and hand washing are practical means of preventing disease. Yet, it seems that standards of cleanliness have moved beyond science since World War Ⅱ. Advertisements repeatedly sell the idea: clothes need to be whiter than white, cloths ever softer, surfaces to shine. Has the hate for dirt, however, gone too far?

    Attitudes to dirt still differ hugely nowadays. Many first-time parents nervously try to warn their children of touching dirt, which might be responsible for the spread of disease. On the contrary, Mary Ruebush, an American immunologist(免疫学家), encourages children to play in the dirt to build up a strong immune system. And the latter position is gaining some ground.

    Until the 1990s coffee was rarely served in China except at luxury hotels aimed at foreigners. When Starbucks opened its first outlet there in 1999, it was far from clear that the country's avid tea-drinkers would take to such a different-and usually more costly- source of caffeine. Starbucks tried to attract customers unused to coffee's bitter taste by promoting milk and sugar-heavy concoctions(调和) such as Frappuccinos.

    But coffee has become fashionable among the middle class in China. Starbucks now has about 3, 800 outlets in China- more than in any other country outside America. Statista, a business-intelligence portal(门户网站), says the roast coffee market in China is growing by more than 10 % a year. Starbucks and its rivals see big opportunities for expanding there.

    So too, however, do home-grown competitors. A major new presence is Luckin Coffee, Beijing- based chain. Since its founding less than two years ago, it has opened more than 2,300 outlets. On May 17th Luckin's initial public offering on the Nasdaq stockmarket raised more than $570m, giving it a value of about $4bn.

    Luckin's remarkable growth is sign of change. No longer do Chinese consumers see coffee as such a luxury. Most of Luckin's outlets are merely kiosks where busy white-collar workers pick up their drinks, having ordered them online. Super-fast delivery can also be arranged through the company's app. Independent coffee shops are springing up. The growth is striking given the country's reputation for its tea-drinking culture where many residents like to relax in teahouses sipping tea served gracefully.

    But the two markets are different. The teahouses tend to cater to older people who like to spend long hours playing mahjong and gossiping. At the coffee shops it is rare to see anyone over 40. Young people use them for socialising, but much of their interaction is online -sharing photos of their drinks and of the coffee-making equipment. An option on the Chinese rating app Dianping allows users to search for wanghong ("internet viral") coffee houses: ones with particularly photogenic decor(照片装饰) where better to sip and We Chat?

    "Bill, you never miss!" Joe said admiringly. "Unless I'm in a real game," Bill complained. "Then I miss all the time." Joe knew that Bill was right. Bill performed much better when he was having fun with Joe in the school yard than he did when he was playing for the school team in front of a large crowd. "Maybe you just need to practice more," Joe suggested. "But I practice all the time with you!" Bill objected. He shook his head. "I just can't play well when people are watching me." "You play well when I'm watching," Joe pointed out. "That's because I've known you since we were five years old," Bill said with a smile. "I'm just not comfortable playing when other people are around." Joe nodded and understood, but he also had an idea.

    The next day Joe and Bill met in the school yard again to practice. After a few minutes, Joe excused himself. "Practice without me," Joe said to his friend. "I'll be back in a minute. "

    Joe hurried through the school building, gathering together whomever he could find-two students, a math teacher, two secretaries, and a janitor(看门人). When Joe explained why he needed them, everyone was happy to help. Joe reminded the group to stay quiet as they all went toward the school's basketball court. As Joe had hoped, Bill was still practicing basketball. He made five baskets in a row without noticing the silent people standing behind him.

    "Hey, Bill!" Joe called out finally. Bill turned. A look of surprise came over his face. "I just wanted to show you that you could play well with people watching you," Joe said. "Now you'll have nothing to worry about for the next game!"