Almost everyone wants to be happy, but not all know how to find happiness. Money and success alone do not bring lasting happiness. Aristotle, a Greek thinker, said, “Happiness depends upon ourselves.” In other words, we make our own happiness. Here are a few suggestions to help you be happier.

    The first secret of happiness is to enjoy the simple things in life. Too often, we spend so much time thinking about the future that we fail to enjoy the present, for example, getting into college or getting a good job. You should enjoy life's simple pleasures, such as reading a good book, listening to your favorite music, or spending time with close friends. People who have several close friends often live happier and healthier lives.

    Another secret to living a happy life is to be active, and have hobbies where you forget your problems and time. Many people experience dancing, or playing a sport, such as swimming. You can forget about your problems and only think about the activity.

    Finally, many people find happiness in helping others. Studies show that people feel good when they spend their time helping others. If you want to feel happier, do good things for someone. You can help a friend with his or her studies, go shopping to buy food for an elderly person, or simply help out around the house by washing the dishes.

    This is my origin story: when I was a teenager I wrote terrible poetry. Like really bad. Worse than yours, I bet. A lot of it about how every little thing reminds me that we're all going to die one day. I wrote collections and collections of these poems, thinking one day I would have my moment. I named one collection, ironically, The Eternal Optimist.

    In 1996, I found an advert for the International Poetry Competition. I was 16 years old and ready for my poetry to be released on the world. Not only was it a competition with a cash prize, but it was poetry, which I wrote, and international. This was my ticket to becoming world-famous. I submitted a poem called Trail of Thought. If you ever wrote bad poetry as a teenager, you'll have written something like it. In the poem, I went for a walk and noticed small poignant(辛酸的) things in nature, and each one reminded me that we were all going to die one day.

    I filled out the form, printed off the poem and sent it off, fingers crossed. I waited to hear back I carried on writing, I probably finished another collection. Then I got a letter from the International Society of Poets. I opened the envelope carefully, just in case a prize-winning cheque fell out I hadn't won. But, they liked my poem enough to include it in their anthology(诗选), Awaken to a Dream. I closed my eyes, I wanted to scream with happiness. I was going to be a published poet.

    All I had to do in order to be published was accept the terms and pay £ 45（plus £ 5 p & p）for an anthology. If I didn't buy a copy of the anthology, my poem wouldn't be included. I had to convince my mum, who thought my writing a meaningless pastime, to part with £ 50. She even asked the question: “Why do you have to pay to be in this book?” Nevertheless, she wrote a cheque for £ 50 and I returned it with my letter of agreement.

    I was 16 and about to be a published poet. This was what it had all been about. This is what it had all been leading to. The months waiting for the anthology were a torture. I hit some sort of writer's block, I couldn't write anything. It was almost as if, now I was published, it mattered more what I committed to page and I didn't want to write anything down unless it was good enough to go into an anthology like Awaken to a Dream.

    The book arrived through the post. Here it was. The first thing I had ever been published in a book called Awaken to a Dream, featuring a blistering take on the mundanity(世俗) of mortality by yours truly. I opened the package to find a book, containing my work. The first thing that struck me about the book was that it was bigger than A4. And it was thick. And on each page was a poem, next to another poem, next to another. The type was small and the paper thin enough to trace with. With three or four poems per page and more than 700 pages, I had a sinking realization. This was a scam, an illegal trick for making money.

    If each poem had cost the author £ 45, they were sitting on a fortune. I felt ashamed. Everyone who had submitted something to the International Poetry Competition had fallen for the same hustle（忙碌）as me. I couldn't bring myself to show my mum. And she never asked to see it. Perhaps she thought if the price of me learning a lesson was £50 we didn't really have, then so be it.

    But that stayed with me, that moment of realization. Because I determined to keep writing and ensure that my precious words always found a home worthy of them. Or at least that's how, more than 20 years later, I justify falling for a scam. Because your first time being published should be special, and if I don't convince myself that there was a reason for my first poem being in a vanity(无价值) book, then what good was it in the first place? And, strangely, someone is selling this book on Amazon at the moment. I wonder how many other writers who went on to do more stuff are in there.

    In 1971, UN scholar Paolo Lugari started an eco-social experiment in Gaviotas, Colombia. Located in one of the most extreme climates, Gaviotas was described as a sustainable, self-sufficient village in an area that Lugari called 'just a big, wet desert'.

    'They always put social experiments in the easiest places,' Lugari said.'We wanted the hardest place. We figured if we could do it here, we could do it anywhere.'

    'Lugari just thought that someday the world would become so crowded that humans would have to learn to live in the planet's least desirable areas,' wrote Alan Weisman, author of Gaviotas: A Village to Reinvent the World.

    Today, Gaviotas is an eco-village with about 200 people. They farm organically. They use wind and solar power. Since 2004, Gaviotas has been 100% fossil fuel independent. The residents also enjoy free housing, schooling, and community meals. Shockingly, there are no weapons, no police, no jail and no mayor. But though these elements would make any social experiment a success, perhaps the most remarkable accomplishment is the planting of 1.5 million pine trees and palm trees. The various results of this new tree growth have been incredible. The shade of the trees has inspired the return of many rainforest species that were once native to the region. Additionally, the residents of Gaviotas enjoy a sustainable source of income from the resin(松香) harvested from the trees.

    The United Nations named Gaviotas a model of sustainable development. The Colombia novelist and Noble Prize winner Grabriel Marquez called Lugari the 'inventor of the world'.

    A new study by a team of researchers has found that 'nature's capacity to store carbon is steadily falling as the world's farmers expand croplands at the cost of the native ecosystem such as forests'.

    Considering this disturbing fact—and as the world population increases towards an estimated 9 billion by the year 2050 and global warming continues to increase the planet's surface temperature—Gaviotas stands as one shining example of how things could be different.

    There are two main things that make aircraft engineering difficult: the need to make every component as reliable as possible and the need to build everything as light as possible. The fact that an airplane is up in the air and can't stop if anything goes wrong, makes it perhaps a matter of life or death that its performance is completely dependable.

    Given a certain power of engine, and consequently a certain fuel consumption, there is a practical limit to the total weight of aircraft that can be made to fly. Out of that weight as much as possible is wanted for fuel, radio navigational instruments, passenger seats, or freight room, and of course, the passengers or freight themselves. So the structure of the aircraft has to be as small and light as safety and efficiency will allow. The designer must calculate the normal load that each part will bear. This specialist is called the "stress man." He takes notice of any unusual stress that may be put on the part as a precaution against errors in manufacture, accidental damage etc.

    The stress man's calculations go to the designer of the part, and he must make it as strong as the stress man says is necessary. One or two small parts are always tested to prove that they are as strong as the designer intended. Each separate part is tested, then a whole assembly—for example, a complete wing, and finally the whole aeroplane. When a new type of aeroplane is being made, normally only one of the first three made will be flown. Two will be destroyed on the ground in strict tests. The third one will be tested in the air.

    When a plane has passed all the tests it can get a government certificate of airworthiness, without which it is illegal to fly, except for test flying.

    Making the working parts reliable is as difficult as making the structure strong enough. The flying controls, the electronic equipment, the fire precautions, etc. must not only be light in weight, but must work both at high altitudes where the temperature may be below freezing point and in the hot air of an airfield in the tropics.

    To solve all these problems the aircraft industry has a large number of research workers, with elaborate laboratories and test houses, and new materials to give the best strength in relation to weight are constantly being tested.

    In today's world of smart phones and laptops, most people have at least one time-telling thing with them. Since these digital products are so common, is time running out for the 500-year-old watch? According to some consumers, the answer is yes. New Jersey teenager Charlie Wollman says a watch is “an extra piece of equipment with no necessary function.” Many young adults think so and use their smart phones to tell time. It is said that fewer young people wear watches today than ten years ago. As a result, some people say that the watch industry is at a crossroads.

    However, watchmakers optimistically say that watches redeem（挽回）popularity when consumers reach their 20s and 30s. By then, they are willing to spend money on a quality watch that doesn't just keep good time. Fifty years ago, watchmakers took pride in their products' accuracy（精确性）. But in recent years, the watch industry has changed itself into an accessory(配饰) business. And today, the image a watch conveys has become more important than the time it tells.

    "Complications" features that go beyond simple timekeeping — are an important part of a watch's image. Today's watches offer lots of features that meet almost any personality. These features include compasses, USB drivers, and even other functions that measure the effectiveness of golf swings!

    Creativity also plays a key role in designing today's watches. For example, Japanese watchmaker Tokyoflash makes watches that don't even look like watches. The company's popular Shinshoku model uses different color lights to tell time. It looks more like a fashionable bracelet than a watch.

    Whether a watch conveys fashion sense, creative talent or a love of sports, consumers want their watches to stand out. Nowadays, everyone has the same kind of gadget（小玩意） in their bags, so people want to make a statement with what's on their wrists. Will this interest in wrist fashion last? Only time will tell!

    It is not always a good thing to praise children because "empty" words may make them unhappy. Words such as "well done" may make them doubt their own abilities, a leading psychologist (心理学家) Stephen Grosz has warned. He says that words such as "you're so clever" or "you're such an artist" could also hinder their future development at school. He says that such empty praise causes children to be unhappy as they may say they can't live up to these expectations.

    Instead he advises parents and teachers to praise children less frequently and use words like "trying really hard," Mr. Grosz said, "Empty praise is as bad as thoughtless criticism (批评). People often pay no attention to children's feelings and thoughts." He also mentions research showing that children who are heavily praised probably perform worse at school.

    Some psychologists from Columbia University asked 128 pupils aged 10 and 11 to work out a number of math problems. Afterwards, some were told, "You did really well­—you're so clever." But the researchers told the other group, "You did really well­—you must have tried really hard." Both groups of children were then given more difficult questions and those who had been told they were clever did not do as well as the others.

    He says that when collecting his daughter from a school near their home in North London, he heard a teacher tell her, "You have drawn the most beautiful tree. Well done," Later, after she had done another drawing, the same teacher said, "Wow, you are really an artist." In his book, Mr. Grosz writes, "How could I explain to the teacher that I would prefer it if she did not praise my daughter?"

    As a parent of two children, I strongly agree with Mr. Grosz. I praise them when praising is proven right. I want them to know if I praise them, they have done something beyond my expectation, beyond what they are able to do.