Joseph Francis Charles Rock (1884–1962) was an Austrian-American explorer, botanist, and anthropologist(人类学家). For more than 25 years, he travelled extensively through Tibet and Yunnan, Gansu, and Sichuan provinces in China before finally leaving in 1949.

    In 1924, Harvard sent Joseph Francis Rock on a treasure hunt through China's southwestern provinces—the Wild West of their day. But gold and silver weren't his task: Rock, a distinguished botanist, sought only to fill his bags with all the seeds, saplings, and shrubs he could find. During his three-year expedition, he collected 20,000 specimens for the Arnold Arboretum(阿诺德植物园).

    Botany, though, was just one of Rock's strengths. As an ethnologist(民族学者), he took hundreds of photographs of the Naxi, a tribe in Yunnan province, recording their now-lost way of life for both Harvard and National Geographic, and took notes for an eventual 500-page dictionary of their language. His hand-drawn map of his travels through China's “Cho-Ni” territory, in the Harvard Map Collection, includes more than a thousand rivers, towns, and mountains indicated in both English and Chinese, and was so well made that the U.S. government used it to plan aerial missions in World War II.

    Scientist, linguist, cartographer, photographer, writer—Rock was not a wallflower in any sense. Arrogant and self-possessed, he would walk into a village or warlord's place “as if he owned the place,” said Lisa Pearson, the Arboretum's head librarian.

    In declaring his successful return under the headline “Seeking Strange Flowers, in the Far Reaches of the World,” the Boston Evening Transcript ran a large photo of the daring explorer wearing in a woolly coat and fox-skin hat. “In discussing his heroism including hair-raising escapes from death either from mountain slides, snow slides and robber armies, he waves the idea away as if it is of no importance.”

    The Arboretum and Rock parted ways after 1927, mainly because his trip cost Harvard a fortune—about $900,000 in today's dollars. Fortunately, many of his specimens, many of his amazing photos, and his great stories remain.

    Rosie Dutton, a teacher from Relax Kids in Tamworth, UK, used two apples to show her students the often unseen but harmful effects of school bullying(校园欺凌). She posted the lesson on Facebook, where it's been shared more than 160,000 times.

    Rosie Dutton explained that during one of her classes she presented the children with two red apples. What the kids didn't know was that before the lesson, she had repeatedly dropped one of the apples on the floor. And yet, on the outside at least, both apples looked perfect.

    “I picked up the apple I'd dropped on the floor and started to tell the children how I disliked this apple,” Dutton wrote. “I told them that because I didn't like it, I didn't want them to like it either, so they should call it names too.”Some of the children looked at her as if she were “crazy”, but the students passed the apple around the circle, calling it names.

    Continuing the exercise, the teacher then passed the second apple around the circle. This apple, however, was showered with words like: “Your skin is beautiful,” and “ what a beautiful colour you have.”

    Dutton then showed the students both apples once again, stressing that “there was no change, and both apples still looked the same.”

    Finally, Dutton cut both apples open. The apple that the class treated kindly looked fresh inside. But the other apple—the one they'd treated poorly —was bruised（瘀伤的) beneath its skin.

    “I think there was a light bulb moment for the children immediately,” Dutton said. “When people are bullied, especially children, they feel horrible inside and sometimes don't show or tell others how they are feeling. If we hadn't have cut that apple open, we would never have known how much pain we had caused it.”

    Dutton explained how important it is to teach children to stand up for one another, and to stop any form of bullying.

    “Let's create a generation of kind caring children,” the teacher wrote. “The tongue has no bones, but is strong enough to break a heart. So be careful with your words.”

    Many people believe that you lose the ability to learn new languages as you get older. Language experts, however, will tell you that you're never too old to learn a new language. As you get older, it can be more difficult to learn a new language, though.

    Children and adults learn new languages in different ways. For children, language is their life. They study for thousands of hours every year, because they need to learn languages to become part of their communities. Adults, on the other hand, are already part of a language community. Learning a new language means becoming part of another language community, and adults rarely get the chance to practice as much as young children do.

    Moreover, children learning a new language are expected to make mistakes. This gives them freedom when learning to be daring and confident. Adults, however, often feel stressed to be perfect when learning a new language. This can discourage many people and make it even harder to learn a new language.

    When young children learn a new language, they come to see various languages as a “normal” part of society. This mindset helps them to learn a new language without feeling like they're doing something unusual or “too hard”.

    So if you want to learn a new language, go for it! It's never too late to learn a new language. If you're older, it may take more work, but it can be done. If you're a young child, though, now is the time to step out and learn a new language!

    The Hawaiian Islands

    Hawaii

    The “Big Island” of Hawaii is a paradise playground where visitors can enjoy a popular lifestyle. A visit to Volcanoes National Park, which is described as a true wonder of the world, is a must.

    Accommodations

    Seasons resort Hualala: from $205.00

    Fairmont Orchid: from $108.00

    Sightseeing and experiences

    Circle Island Tour: from $48.00

    Kauai

The beautiful landscape of Kauai has led to it being called the “Garden Isle”, but it is also referred to as the “Island of discovery”, and with good season— a land of striking natural contrasts just waiting to be explored. Green mountains, a breathtaking coastline and white sand beaches combined to make this magical place one of the world's most relaxing locations.

    Accommodations

    Hyatt Kauai: from $101.00

    Sheranton Kauai Resort: from $79.00

    Maui

    Voted the “World's Best Island”, Maui is widely regarded as one of the most romantic destinations on the earth.

    Accommodations

    Hyatt Regency MauiResort& Spa: from $87.00

    Sheraton Maui: from $99.00

    Oahu

    Oahu has a unique rhythm, filling the air with sweet fragrances, music and language from beaches and nightlife to rainforests and valleys.

    Accommodations

    Halekulani: from $121.00

    Hilton Hawaiian Village: from $73.00

    Sightseeing and experiences

    Royal CircleIsland Tour: from $34.00

    Paradise Cove Lu'au: $44.00

    Lanai

    Lanai is one of the smallest Hawaiian Island, yet it's full of surprises. Known as the “Pineapple Isle”, it combines all the natural beauties ranging from the paradise of Shipwrech-Beach to underwater sea caves.

    Accommodations

    Four seasons Resort Lanai at Mancle Bay: from $ 134.00

    All prices are based on per person per night.

    There's a new frontier in 3D printing that's beginning to come into focus: food. Recent development has made possible machines that print, cook, and serve foods on a mass scale. And the industry isn't stopping there.

    Food production

With a 3D printer, a cook can print complicated chocolate sculptures and beautiful pieces for decoration on a wedding cake. Not everybody can do that—it takes years of experience, but a printer makes it easy. A restaurant in Spain uses a Foodini to" re-create forms and pieces" of food that are" exactly the same,” freeing cooks to complete other tasks. In another restaurant, all of the dishes and desserts it serves are 3D-printed, rather than farm to table.

    Sustainability(可持续性)

    The global population is expected to grow to 9.6 billion by 2050, and some analysts estimate that food production will need to be raised by 50 percent to maintain current levels. Sustainability is becoming a necessity. 3D food printing could probably contribute to the solution. Some experts believe printers could use hydrocolloids( 水解胶体)from plentiful renewables like algae(藻类) and grass to replace the familiar ingredients(烹饪原 料). 3D printing can reduce fuel use and emissions. Grocery stores of the future might stock "food" that lasts years on end, freeing up shelf space and reducing transportation and storage requirements.

    Nutrition

    Future 3D food printers could make processed food healthier. Hod Lipson, a professor at Columbia University, said, "Food printing could allow consumers to print food with customized nutritional content, like vitamins. So instead of eating a piece of yesterday's bread from the supermarket, you'd eat something baked just for you on demand."

    Challenges

    Despite recent advancements in 3D food printing，the industry has many challenges to overcome. Currently, most ingredients must be changed to a paste( 糊状物)before a printer can use them, and the printing process is quite time-consuming, because ingredients interact with each other in very complex ways. On top of that, most of the 3D food printers now are restricted to dry ingredients, because meat and milk products may easily go bad. Some experts are doubtful about food printers, believing they are better suited for fast food restaurants than homes and high-end restaurants.

    Heading off to college this year? Here are some fashion tips from our experts you should keep in mind：

    Dress to impress: Stylist and business consultant Daniela Smith says, "Girls should keep in mind that your college professors will often be the bridge that connects you to your future career and your classmates will become your professional network. You don't need to dress like you're going to the office, but you should display an ability to properly present yourself with appropriate maturity and confidence, and look put­together."

    Logo mania (品牌狂热症): Wearing the logos of brands aimed at younger customers physically identifies you as part of that age group  so consider the targeted age group of the stores you shop at. It's tempting to load up on logos, especially well­known logos that signify high­end brands. But consider this: college is a time of self­discovery, a chance to develop your own personal style. Instead of wearing logos head to toe, "walking advertisement" style, why not express who you really are?

    Wear real pants: The combination of leggings and baggy shirts is all too common on college campuses. Smith points out that leggings, yoga pants, and sweatpants are entirely unacceptable in public unless you're exercising. Although leggings worn as pants are a common trend among high school and college girls, they are not an appropriate choice for daywear. As a young woman, your style choice should begin to reflect your maturity level. So, get rid of leggings and wear real pants!

    Keep the cute factor to a minimum: Stay away from sweaters and T-shirts with smiling animals, cartoon characters, or Hello Kitty on them. Sure, kittens might be cute, but they're not doing you any favors in the style department. Dressing too cutesy (矫揉造作的) can take years off your look, and not necessarily in a good way!