Dear Mr. Rupp,

    The day I met you was the first day of high school. We liked each other immediately. You gave me a lot of advice over the next four years, like how I should get my ass to Berkeley where I belonged. I'm still there, by the way. I wish you were still around, too.

    I remember your laugh, which would start with a rough guffaw(狂笑) and end with a hacking smoker's cough that would make even the most rebellious (叛逆的) teenager decide to lay off the cigarettes. I remember the way you didn't lower your standards, yet still refused to give up on us. You were tough on us, and we were tough on you. Love is tough sometimes.

    The last time I wrote you a letter, it was 2005—four years after I graduated. I had just become a teacher, like you, and it had given me a new appreciation for the work you did with countless high school students over the years.

    It's hard to say what I'll miss the most about you. There are simply too many memories to sort through those four years, and it hurts to think you'll never read this letter. I want to believe that you knew how much you meant to your family, your students, your community, and your colleagues, but that would be a lot of realization to handle, even for you.

    You changed the lives of everyone around you. Even now, you are reminding me to cherish life and its brevity and beauty, and to tell the people I love how much they mean to me before it is too late.

    Dear teacher, dear mentor, and dear friend—I miss you and all that is about you. God bless you in Heaven.

To infinity and beyond,

Teresea

    Recently, we've been talking about how we need better teachers. There's no doubt that great teacher can help in a student's learning but here's what some new studies are also showing: We need better parents.

    Every three years, the organization called O.E.C.D. organizes exams as part of the Program for International Student Assessment(评估), or PISA, which tests 15-year-olds on their abilities to deal with real problems. America's 15-year-olds have not done as well as students in Singapore, Finland and Shanghai in the PISA exams.

    To better understand the reasons, the PISA team, starting with four countries in 2006, and then adding 14 more in 2009, went to the parents of 5,000 students. They interviewed them about how they raised their kids and then compared it with the test results for each of those years. Two weeks ago, the PISA team published the main finding of its study.

    Fifteen-year-olds whose parents often read books with them during their first year of primary school get much higher scores in PISA 2009 than students whose parents don't often read with them or not at all. Parents' concern for their children is strongly connected with better results in PISA.

    According to Schleicher, the leader of the team, just asking your children how their school    day was and showing great interest in their learning can help a lot. It is something every parent can do, no matter what their education level is.

    The study found that getting parents concerned about their children's learning at home is more powerful than parents attending parent-teacher meetings, volunteering in classrooms,   taking part in money-raising, and showing up at back-to-back nights.

    To be sure, nothing can replace a good teacher. But let's stop putting the whole duty on teachers. We also need better parents. Better parents can make teaching more beneficial.

    Imagination and fantasy can play an important role in achieving the things we fear. Children know this very well. Fred Epstein, in his book If I Make It to Five, tells a story he heard from one of friends about Tom, a four-year-old boy with a cancer in his back bone. He came through several operations and a lot of pain by mastering his imagination.

    Tom loved to pretend, and he particularly loved to play superheroes, Dr. Epstein explained that it was actually a brilliant way for his young mind to handle the terrifying and painful life he led.

    The day before his third trip to the operating room, Tom was terribly afraid. ”Maybe I could go as Superman,”he whispered to his mom. Hearing this, the mother hesitated for a while. She had avoided buying the expensive costume（戏装），finally she agreed.

    The next day Tom appeared as the powerful Superman, showing off through the hospital halls and coolly waving his hand to the people greeting him along the way. And Tom, with the strength of his fantasy, successfully made it through the operation.

    The power of imagination need not be reserved for children only. We all have the power to use our fantasies to attempt things we never thought possible, to go through those things that seem impossible, and to achieve what we never believed we could. Just as Dr. Epstein puts it, ”If you can dream it, you can do it.”

    It doesn't mean that you should dress as a superhero for your next job interview. But, next time you are texted in a way that seems impossible, imagine what it would take to overcome it .Become the person you need to become to win over your challenge and do it in your mind first. So, let your imagination run wild, and dare to dream.

    More than 40 percent of the species that help with pollination (植物传粉) are under threat due to the polluted environment. So some researchers have been searching for ways to protect the bees and other crucial pollinators while some engineers have thought perhaps an army of robotic pollinators could keep humans well-supplied in these foods. A team of researchers has recently designed a small drone capable of pollinating flowers. They tested their device on the large, pink flowers of lilies. And it worked.

    Exciting as this success was, it is only the first step. The team has yet to figure out how to apply the concept on the massive scale. Could a fleet of robo-pollinators replace the bees?

    “Although the answer isn't a straightforward no, it would be a challenging leap to go from this one little drone pollinating one large flower to an army of drones spreading across fields of crops,” says Scott Swinton, an agricultural economist at Michigan State University.

    “The successful pollination was fascinating,” Scott Swinton says, “but the device itself might damage the flowers. I wonder how you make sure you're not doing more harm than good to flowers when you have a drone.”

    “Furthermore,” he points out, “a lily is a particularly easy flower for a drone to pollinate. To make this more broadly applicable for smaller and more complex flower structures, the drones would need to be particularly agile.”

    Still, Joshua Campbell, an expert at the University of Florida, says “Pollination systems are extremely complex and will always require insects. There is no substitute for bees.”

    “As for the technology itself, it is a promising new development in existing drone technology,” he added. Yet he still sees some hurdles ahead before drones can be applied on a large scale.

    When HarmonyOs, the Chinese self-developed operating system for Huawei mobile devices, was released on Aug 9, it quickly became a hot topic on social media. Many believe it not only represents the rise of the country as a tech power, but also shows respect to classical Chinese culture by naming the system "Hongmcng" in Chinese.

    "Hongmeng" is a classical word from Zhuangzi. In the ancient times of Chinese legend and myths (神话),"Hongmeng" was used to describe the original state of the universe before matter existed. For HarmonyOS, "Hongmeng" indicates the developers' aim to make an innovative operating system, unlike any other.

    Besides "Hongmeng'", Hunwei has also registered many of its products under the names of legendary creatures from Chinese myths. For example, the company's Kirin mobile chip got its name after a lucky monster called "Qilin". And its server chip is calked "Kunpeng", a creature that changed from a fish into a giant bird.

    Many Chinese Internet users and media have praised Huawei's use of these names," as they stand for Chinese wisdom and ancient people's imagination and spirit of exploration", Global Times noted.

    In fact, Huawei is not alone in using traditional culture for modern ventures. Ne Zha, the new film, also portrays traditional culture in a modern context. The movie is loosely based on the well-known work of classical Chinese myth The Investiture of the Gods. Earlier this month it became the biggest animated movie in China and was called "the glory of domestic anime (国产动漫)".

    Indeed, the long history and splendid classic works have given China a profound culture. Myths and legends are the creative works of tremendous imagination. As Global Times put it, today by revisiting a modern context, "ancient myths has the power to inspire imagination in young people". After all, imagination is the beginning of creation.

    Social media (社交媒体)is one of the fastest-growing industries in today's world. A study conducted by the US think tank (智囊团) Pew Research Center showed that 92 percent of teenagers go online daily.

    The wide spread of social media has changed nearly all parts of teenagers' lives.

    ●Changing relationships

    High school student Elly Cooper from Illinois said social media often reduces face-to-face communication.

    "It makes in-person relationships harder because people give attention to their phones instead of their boyfriends or girlfriends," Cooper said.

    There's also a greater possibility of things getting lost in translation over social media.

    "If half of your relationship is over social media, you don't really know how the other person is reacting," Sienna Schulte, a junior student from Illinois, said.

    Yet, some people believe social media has made it easier to start relationships with anyone from anywhere. Beth Kaplan from Illinois met her long-distance friend through social media. He currently lives in Scotland, but they're still able to frequently communicate with one another.

    "I can feel close to someone that I'm talking to via (通过) FaceTime," Kaplan said.

    ●Wanting to be "liked"

    The rise of social media has changed the way teenagers see themselves.

    The 19-year-old Essena O'Neill announced on the social networking service Instagram that she was quitting social media because it made her obsessed (痴迷) with appearing perfect online.

    Negative comments also can do great damage to a teenager's self-esteem (自尊).

    In particular, anonymous (匿名的) social media apps such as Yik Yak may provide opportunities for cyberbullying (网络欺凌).

    The app allows users within 5 miles (8 km) to create and add comments to everything. Teenagers who get negative comments on these sites can't help but feel hurt.

    ●Opening new doors

    However, Armin Korsos, a student from Illinois, takes advantage of the comments he receives over social media to improve his videos on the social networking site YouTube.

    "Social media can help people show themselves and their talents to the world in a way that was never possible before," Korsos said.

    But Korsos recognizes that social media has become a distraction.

    "Social media, though it helps people connect with their friends and stay updated, is not all necessary."