Dear Seth,

    You're only three years old, and at this point in your life you can't read, much less understand what I'm going to try to tell you in this letter. But I've been thinking a lot about the life that you have ahead of you, about my life so far as I reflect on what I've learned, and about my role as a dad in trying to prepare you for the trials that you will face in the coming years.

    You won't be able to understand this letter today, but someday, when you're ready, I hope you will find some wisdom and value in what I share with you.

    You are young, and life has yet to take its toll on you, to throw disappointments and heartaches and loneliness and struggles and pain into your path. You have not been worn down yet by long hours of thankless work, by the slings and arrows of everyday life.

    For this, be thankful. You are at a wonderful stage of life. You have many wonderful stages of life still to come, but they are not without their costs and perils.

    I hope to help you along your path by sharing some of the best of what I've learned. As with any advice, take it with a grain of salt. What works for me might not work for you.

    Life Can Be Cruel

    There will be people in your life who won't be very nice. They'll tease you because you're different, or for no good reason. They might try to bully you or hurt you.

    There's not much you can do about these people except to learn to deal with them, and learn to choose friends who are kind to you, who actually care about you, who make you feel good about yourself. When you find friends like this, hold on to them, treasure them, spend time with them, be kind to them, love them.

    There will be times when you are met with disappointment instead of success. Life won't always turn out the way you want. This is just another thing you'll have to learn to deal with. But instead of letting these things get you down, push on. Accept disappointment and learn to persevere, to pursue your dreams despite pitfalls. Learn to turn negatives into positives, and you'll do much better in life.

    You will also face heartbreak and abandonment by those you love. I hope you don't have to face this too much, but it happens. Again, not much you can do but to heal, and to move on with your life. Let these pains become stepping stones to better things in life, and learn to use them to make you stronger.

    But Be Open to life Anyway

    Yes, you'll find cruelty and suffering in your journey through life … but don't let that close you to new things. Don't retreat from life, don't hide or wall yourself off. Be open to new things, new experiences, new people.

    You might get your heart broken 10 times, but find the most wonderful woman the 11th time. If you shut yourself off from love, you'll miss out on that woman, and the happiest times of your life.

 You might get teased and bullied and hurt by people you meet … and then after meeting dozens of jerks, find a true friend. If you close yourself off to new people, and don't open your heart to them, you'll avoid pain … but also lose out on meeting some incredible people, who will be there during the toughest times of your life and create some of the best times of your life.

    You will fail many times but if you allow that to stop you from trying, you will miss out on the amazing feeling of success once you reach new heights with your accomplishments. Failure is a stepping stone to success.

    Life Isn't a Competition .You will meet many people who will try to outdo you, in school, in college, at work. They'll try to have nicer cars, bigger houses, nicer clothes, cooler gadgets. To them, life is a competition — they have to do better than their peers to be happy.

    Here's a secret: Life isn't a competition. It's a journey. If you spend that journey always trying to impress others, to outdo others, you're wasting your journey. Instead, learn to enjoy the journey. Make it a journey of happiness, of constant learning, of continual improvement, of love.

    Don't worry about having a nicer car or house or anything material, or even a better-paying job. None of that matters a whit, and none of it will make you happier. You'll acquire these things and then only want more. Instead, learn to be satisfied with having enough — and then use the time you would have wasted trying to earn money to buy those things … use that time doing things you love.

    Finally, know that I love you and always will. You are starting out on a weird, scary, daunting, but ultimately incredibly wonderful journey, and I will be there for you when I can. Godspeed.

Love,

Your Dad

    Wherever she goes, Molly leaves her mark. Without saying a word, she speaks to people with her kind eyes. Even when she walks away, she leaves an impression. Molly's mark is a smile, stamped into the ground by the horseshoe at the bottom of her false leg．

    A few years ago, Molly was badly attacked by a dog. The dog bit all four of Molly's legs and left large cuts in her face. Molly's owner, Kate Harris, took her to an animal hospital. Doctors there were able to save Molly's life, but soon one of her legs became very infected (感染).

    At first, doctors thought Molly would have to be put to sleep. But Molly changed their minds. This pony, doctors noticed, shifted her weight, and rested her good leg from time to time. Doctors knew that Molly had amazing intelligence, and that she wanted to live.

    Several doctors operated on Molly, and removed her infected leg. A false leg was made for her. The leg was a hollow cast with a pole at the bottom for balance. Doctors gave Molly a special horseshoe at the bottom of the leg. This horseshoe she had had a stamp of a smile face in it!

    After the operation, Molly walked around on all four legs, as if nothing had ever happened to her! Now, with every step she takes, she stamps a smile in the dirt. But she leaves her mark in other ways, too.

    Kaye Harris took Molly to the false leg center. There were children there who, like Molly, had artificial arms or legs. They were amazed to see a pony with a false leg. Molly made them smile and gave them hope. Soon, Molly began to visit schools, nursing homes, army bases and hospitals. A book was even written about Molly!

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    Return flights from 6 China's airports to Naples

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    Seven nights' accommodation at the 3 star Hotel Nice

    Breakfast

    The service of guides

    Government taxes

    Join us for a wonderful holiday in one of the Europe's most wonderful comers—Naples in Italy if you want to have a nice time in a beautiful small quiet place. The ancient Romans called the city “happy land” with attractive coastline, colorful towns, splendid views and the warm Mediterranean Sea. Your best choice for a truly memorable holiday!

    Choose between the peaceful traditional villages of Sant' Agata, set on a hillside six miles away from Sorrento, or the more lively and well-known international resort own of Sorrento, with wonderful views over the Bay of Naples.

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B

    These days, young people in some English-speaking countries are speaking a strange language, especially when communicating on social media.

    Look at these words chosen by The Washington Post: “David Bowie dying is totes tradge,” and “When Cookie hugged Jamal it made me totes emosh.” Or this sentence: “BAE, let me know if you stay in tonight.”

    What on earth do they mean? Well, “totes” is a short form of “totally”. Similarly, “tradge” means “tragic” and “emosh” means “emotional”. It seems that, for millennials（千禧一代）, typing in this form is not only time-saving but fashionable.

    As you can see, many millennial slangs（俚语）are formed by so-called “totesing”—the systematic abbreviation（缩写）of words. The trend might have started with “totally” becoming “totes”, but it now has spread to many other English words.

    The origins of other millennial slangs are more complex than “totesing”.“Bae”, for example, has been widely used by African-Americans for years. It can be an expression of closeness with one's romantic partner or, like “sweetheart”, for someone without romantic connection. After pop singer Pharrell used the word in his work, “bae” became mainstream.

    Some people might think millennial slangs lower the value of the English language, but Melbourne University linguist（语言学家）Rosey Billington doesn't agree. She says when people are able to use a language in a creative way, they show that they know the language rules well enough to use words differently. Two other linguists, Lauren Spradlin and Taylor Jones, share the same view. The two analysed hundreds of examples of totes-speak and discovered totesing has complex roots.

    It isn't simply an adult version of baby talk, nor a clever way to minimize your word count. Rather, it is a highly organized system that relies on a speaker's mastery of English pronunciation. It is about sounds, follows sound system of English and has strict rules.

    When Gitanjali Rao shared how she likes "finding solutions to real problems”, it was hard to imagine this dynamic 11-year-old girl could settle a problem that has escaped scientists for years.

    In just three months, Rao came up with a device（装置）that can replace the costly and lengthy tests currently used to reliably determine lead levels in our fresh water. Inspired by the current litigation （诉讼）in Flint, Michigan, a case of water pollution from 2014 to 2015, Rao designed a new testing system that resulted in her being named America's Top Young Scientist for 2017.

    Rao had been following the water problem for about two years. She was amazed by the number of people affected by lead pollution in water and wanted to do something to change this. Gitanjali spent months trying to convince local high schools and colleges to give her lab time to continue her experiment. At home, Gitanjali worked on her project in the "science room” she asked her parents to create for her. Rao has created a device that uses three parts: a cartridge, a Bluetooth reader and an app. To put it simply, the cartridge contains carbon nanotubes（纳米管） that react to lead. This reaction is then registered by the Bluetooth reader, which sends a signal to a mobile app that can tell you immediately if your water is safe to drink.

    Rao appropriately named the device Tethys after the Greek goddess of fresh water, and is hoping to make a little improvement to get the device on the market. While we may not be aware of any lead pollution present in our aging pipelines, lead poisoning can cause delays in physical and mental development. With Rao believing that the "purpose of science is to make a difference”, her incredible invention could make a difference to millions of people in the United States.

We all love to take photographs. It's a simple way to snap a special moment, an amazing view, or just to show off your artistic skills. And it's great to look back through your photo albums and share memories with your friends. In fact, they show a snapshot (快照)in time. This hasn't really changed since the invention of photography in the 1830s. But one thing that has changed is the equipment we use.

For many years, we have used traditional cameras to take our pictures with. Our images were taken onto camera film which was then processed into negatives from which photos were printed— a lengthy process. And we've had a range of cameras to choose from— from the simple compact camera to more advanced single lens reflex, or SLR cameras.

But the biggest change has come with the development of digital devices. This has made taking photo quicker and easier. It's enabled us to take a snap and review our pictures instantly. We've been able to deal with them in post-production, using software on our computer. And of course, we've been able to share them like never before— particularly on social media.

Of course, now we have the smartphone— a phone that is, well, smart because it can take photos and sometimes very good quality ones, and we can share them easily. So does that mean the traditional camera will eventually become outdated? Figures from Japan show how the market is shrinking: shipments of compact digital cameras from companies like Olympus, Canon and Nikon were down 39 percent year on year.

But Phil Hall, editor of Tech Radar magazine, told the BBC that while people are swapping their compact cameras for smartphones, "manufacturers are looking at the more higher-end cameras, high-end compacts, DSLRs, which are the ones you can attach lenses to, mirrorless cameras. In this sense, there's nothing to worry about. "