According to sociologists(社会学家), every modern industrial society has some form of social stratification(阶层). Class, power and status are important in deciding people's rank in society.

    Class means a person's economic position in society. A commonly used classification is lower class, middle class and upper class. While sociologists disagree on how these terms should be exactly defined, they do describe societies like the United States quite well. One study shows that 53% of Americans belong to the lower class, 46% the middle class, and 1% the upper class. Interestingly, a surgeon earning $500,000 a year and a bus driver earning $50,000 a year both regard themselves as the middle class!

    Power refers to the amount of control a person has over other people. Obviously, people in positions of great power (such as governors) exercise(行使)big power, but people who take orders from others have less power. Power and class do not always go hand in hand, however. For example, the governor of a state has great power, but he or she may not belong to a corresponding (相应的)economic class. Generally, however, there is a relationship between power and class. To our knowledge, there aren't too many people who aren't millionaires in the U．S. Senate!

    Status is the honor or respect attached to a person's position in society. It can also be affected by power and class, but not necessarily so. For example, a university professor may have a high status but not belong to a high social class or have a lot of power over others.

    A Guide to the University

    Food

    The TWU Cafeteria is open 7am to 8pm. It serves snacks(), drinks, ice cream bars and meals. You can pay with cash or your ID cards. You can add meal money to your ID cards at the Front Desk. Even if you do not buy your food in the cafeteria, you can use the tables to eat your lunch, to have meetings and to study.

    If you are on campus in the evening or lat at night, you can buy snacks, fast food, and drinks in the Lower Café located in the bottom level of the Gouglas Centre. This area is often used for entertainment such as concerts, games or TV watching.

    Relaxation

    The Globe, located in the bottom level of McMillan Hall, is available for relaxing, studying , cooking, and eating. Monthly activities are held here for all international students. Hours are 10 am to 10 pm, closed on Sundays.

Health

    Located on the top floor of Douglas Hall, the Wellness Centre is committed to physical, emotional and social health. A doctor and nurse is available if you have health questions or need immediate medical help or personal advice. The cost of this is included in your medical insurance. Hours are Monday to Friday, 9am to noon and 1;00 to 4;30pm.

    Academic Support

    All students have access to the Writing Centre on the upper floor of Douglas Hall. Here, qualified volunteers will work with you on written work, grammar, vocabulary, and other academic skills. You can sign up for an appointment on the sign-up sheet outside the door two 30 –minute appointments per week maximum. This service is free.

    Transportation

    The TWU Express is a shuttle service. The shuttle transports students between campus and the shopping centre, leaving from the Mattson Centre. Operation hours are between 8am and 3pm. Saturdays only. Round trip fare is $1.

    Modern inventions have speeded up people's loves amazingly. Motor-cars cover a hundred miles in little more than an hour, aircraft cross the world inside a day, while computers operate at lightning speed. Indeed, this love of speed seems never-ending. Every year motor-cars are produced which go even faster and each new computer boasts of saving precious seconds in handling tasks.

    All this saves time, but at a price. When we lose or gain half a day in speeding across the world in an air plane, our bodies tell us so. We get the uncomfortable feeling known as jetlag; our bodies feel that they have left behind on another time zone. Again, spending too long at computers results in painful wrists and fingers. Mobile phones also have their dangers, according to some scientists, too much use may transmit harmful radiation into our brains, a consequence we do not like to think about.

    However, what do we do with the time we have saved? Certainly not relax, or so it seems. We are so accustomed to constant activity that we find it difficult to sit and do nothing, or even just one thing at a time. Perhaps the days are long gone when we might listen quietly to a story on the radio, letting imagination take us into another world.

    There was a time when some people's lives were devoted simply to the cultivation of the land or the care of cattle. No Multi-tasking there; their lives went on at a much gentler pace, and in a familiar pattern. There is much that we might envy about a way of life like this. Yet before we do so, we must think of the hard tasks our ancestors faced, they farmed with bare hands, often lived close to hunger, and had to fashion tools from wood and stone, Modern machinery has freed people from that primitive existence.

    There is no better way to enjoy Scottish traditions than going fishing and tasting a little bit of whisky (威士忌) at a quiet place like the Inverlochy Castle. When Queen Victoria visited the castle in 1873 she wrote in her diary, “I never saw a lovelier spot.” And she didn't even go fishing.

    Scotland is not easily defined. In certain moments, this quiet land of lakes and grasses and mountains changes before your very eyes. When evening gently sweeps the hillside into orange light, the rivers, teeming with fish, can turn into streams of gold. As you settle down with just a fishing pole and a basket on the bank of River Orchy, near the Inverlochy Castle, any frustration (烦恼) will float away as gently as the circling water. It's just you and purple, pink, white flowers, seeking a perfect harmony. If you are a new comer to fishing, learning the basics from a fishing guide may leave you with a lifetime's fun. For many, fishing is more than a sport; it is an art.

    Scotland offers interesting places where you can rest after a long day's fishing. Set against a wild mountain and hidden behind woodland, the beautiful Inverlochy Castle Hotel below the Nevis is a perfect place to see the beauty of Scotland's mountains. Ben Nevis is the highest of all British mountains, and reaching its 1343-metre top is a challenge. But it's not just what goes up that matters; what comes down is unique. More than 900 metres high, on the mountain's north face, lies an all-important source of pure water. Its name comes from the Gaelic language “usquebaugh” or “water of life”; and it is the single most important ingredient (原料) in Scotland's best known drink: whisky.

    There's a new frontier (新领域) 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 (复杂的) 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.

    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 to meet their own nutritional needs, 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 skeptical about 3D food printers, believing they are better suited for fast food restaurants than homes and high-end restaurants.

I've just arrived from New York City at the airport in Rome and already I'm lost, wandering left and right and searching for the right exit. I'm supposed to meet my wife Elvira, who lives in Italy now, and then drive to Guardia Sanframondi, the little town where we own a house, to meet our newborn granddaughter Lucia, now all of 11 weeks old.

But I takes a wrong turn, and then another, all in vain. I'm lost for 15 minutes, then 30, and finally about 45, unable to get my passport properly scanned and pick up my luggage. This is more than mildly inconvenient. After all, I've just flown more than 4,000 miles, a flight into my future.

But suddenly I see Elvira, who is holding baby Lucia in her arms. I'm found.

I stay in Italy for three weeks. It's impossible for me to get enough of Lucia, and so I follow a strict agenda(日程). Hold Lucia in my arms. Kiss Lucia all over her face. Wheel Lucia in her carriage in the most public places available. Make faces at her and even sillier gestures and sounds.

Today, at 70, I'm a permanent resident of Italy, with Lucia living a five-minute walk away. We visit her at her house and she visits us at ours almost every day. In most American families, adult children with grandchildren live in different towns and states far away. Italian families, on the other hand, are more likely to live near each other. Sometimes three generations here even stay together in the same home. I've happily turned my life upside-down to be a grandpa Italian-style. Lucia is just what I need right about now. If I'm lucky, I'll be just what she needs, too.