Five years ago, when I taught art at a school in Seattle, I used Tinkertoys as a test at the beginning of a term to find out something about my students. I put a small set of Tinkertoys in front of each student, and said:"Make something out of the Tinkertoys. You have 45 minutes today and 45minutes each day for the rest of the week." A few students hesitated to start. They waited to see the rest of the class would do. Several others checked the instructions and made something according to one of the model plans provided. Another group built something out of their own imaginations.

    Once I had a boy who worked experimentally with Tinkertoys in his free time. His constructions filled a shelf in the art classroom and a good part of his bedroom at home. I was delighted at the presence of such a student. Here was an exceptionally creative mind at work. His presence meant that I had an unexpected teaching assistant in class whose creativity would infect(感染) other students.

Encouraging this kind of thinking has a downside. I ran the risk of losing those students who had a different style of thinking. Without fail one would declare, "But I'm just not creative."

"Do you dream at night when you're asleep?"

"Oh, sure."

"So tell me one of your most interesting dreams." The student would tell something wildly imaginative. Flying in the sky or in a time machine or growing three heads. "That's pretty creative. Who does that for you?"

"Nobody. I do it."

"Really-at night, when you're asleep?"

"Sure."

"Try doing it in the daytime, in class, okay?"

    All Alice Waters wanted was bread, jam and lettuce that tasted real, with a cup of good coffee or a glass of wine on the side. The founder of Chez Panisse, the California restaurant famous for launching the farm-to-table movement, certainly didn't plan to start a revolution.

    Returning to the United States in 1965 after studying in France, Waters missed the delicious food and community of the little cafes where she spent most of her time. “The United States was a land of frozen food, so eating even just fresh bread and jam was an extremely pleasant surprise to me,” says Waters. “And spending time in restaurants with friends… it was very important to me.”

    One day, an idea struck Waters that maybe her cooking and sense of community could help her make some money. Believing they could do anything, she and a group of friends raised money, found a house in Berkeley and opened a little restaurant called Chez Panisse in 1971.

    Most ingredients Waters could find were from industrial farms. They tasted totally different from the ones her parents planted during World War II and the ones she had enjoyed in France. Thus she began a search for suppliers who would grow good ingredients.

    “I was looking for taste. And I couldn't find taste until I met the local organic farmers who were growing vegetables for flavor,” Waters recalls. “I realized that I would be dependent on them for the success of my restaurant.”

At first, the finances were a disaster. If any of the ingredients didn't taste right, chefs threw them out. Staff had to taste the wine to sell it. That meant thousands of dollars of wine disappeared on a regular basis. People who offered ingredients were given meals in trade.

    But Chez Panisse had lines out of the front door from the very first night. Waters' sense of taste and her dedication to making the best food possible kept people coming back. It didn't take long for Chez Panisse to catch the attention of foodies (“吃货”). Throughout its existence, the restaurant has earned the highest praise of many critics. It has sometimes been called the best restaurant in America.

    Now 72, Waters is not content with staying at home and cooking in her kitchen. Last September, she flew to Washington D. C., to meet members of Congress to discuss the benefits of free lunch for all schoolchildren.

    Many people have called Waters unrealistic over the course of her 45-year fight for good food. Nevertheless, her single-mindedness ended up sparking a farm-to-table movement. “She didn't start Chez Panisse to change the world,” said Marion Nestle, a New York University nutrition professor. “But what she did was absolutely revolutionary. She's a force and deserves every bit of recognition that comes her way.”

    Lions are the top tourist attraction to Kenya and also considered critically endangered. One of the main causes of their death is that people kill them in return for lions attacking their cows. “We put our cows in a small cow shelter at night,” locals said, “and that's when the trouble would start. Lions would jump in the shelter and kill the cows”.

    There have been a lot of efforts to try to protect the lions, but it's a crisis and everyone is looking for a solution. One idea was land leases(租用), another was lion-proof fences. However, no one even knew that Richard Turere, a 13-year-old Maasai from Kenya, had already come up with something that worked.

    One night Richard was walking around with a flashlight and discovered the lions were scared of a moving light. An idea was born. Three weeks and much repairing later, Richard invented a system of lights that flash around the cow shelter, mimicking a human walking around with a flashlight. His system is made from broken flashlight parts and an indicator box from a motorcycle. “The only thing I bought was a solar panel（电池板）, which charges a battery that supplies power to the lights at night.” Richard says. He calls the system Lion Lights.

    His simple solution was so successful: his neighbors heard about it and wanted Lion Lights, too. He put in the lights for them. From there, the lights spread and are now being used all around Kenya. Someone in India is trying them out for tigers. In Zambia and Tanzania they're being used as well.

    Alaska Airlines has the cheapest fares around, but you receive superb service unequal to its price. In case you don't know, Alaska Airlines does not just go to Alaska, but includes states such as Washington, California, and Hawaii. Our prices are reasonable and we offer great service.

    Alaska Airlines is generous. For each bag you check in, it must weigh 50 pounds or less, which is extremely generous for domestic flights. Your baggage is allowed to be up to 62 inches in length. You're also allowed one carry-on bag in addition to one personal item which can be a purse, a laptop computer, or a briefcase.

    Not only do we give you the cheapest airfare, but we offer you a visa card which you can earn plenty of miles on. Upon approval, you will receive 25,000 Bonus Miles. From then on, for each dollar you charge to this card, you will receive 3 miles and there's no limit to the amount of miles you can earn. You also receive a $99 round-trip discount code for a Companion Ticket each year for using this card. This is a sweet deal and very generous. Think about all of your purchases you make during the month. Now multiply that by three. You're talking about a free trip cross country in just a few short months. Wow!

    Alaska Airlines receives great reviews for its performance, punctuality, and professional service. In addition to its great reviews from customers, Alaska Airlines has received lots of awards and recognitions. Network Carriers in North America has rated Alaska Airlines for the highest in customer satisfaction for the past 4 years. We have also received the Executive Travel's leading edge Award. We were also named on the 2011 Washington Green 50 list.

    Alaska Airlines is quickly gaining the recognition it deserves. We're adding higher expectations to the flying experience. Try it out.

    Environmentalists said our planet was bound to die. Now one man says they are wrong. “Everyone knows the planet is in bad shape,” thundered a magazine article last year. “Species are being driven to die out at record rates, and the rivers are so poisonous that fish are floating on the surface, dead.”

    But there's growing belief that what everyone takes for granted is wrong: Things are actually getting better. A new book is about to overturn our most basic assumptions about the world's environment. Rivers, seas, rain and the atmosphere are all getting better.

    The total amount of forests in the world is not declining. The Skeptical Environmentalist by Bjorn Lomborg, professor of statistics at the University of Aarhus in Denmark, is an attack on the misleading claims of environmental groups, and the “bad news” culture that makes people believe everything is getting worse.

    Now the attacks are increasingly coming from left-wing environmentalists such as Lomborg, a former member of Greenpeace. The accusation is that, although the environment is improving, green groups — with profits of hundreds of millions of pounds a year — are using scare tactics (战术) to gain donations. Lomborg's book doesn't deny global warming — probably the biggest environmental threat — but destroys almost every other environmental claim with many official statistics.

    The Worldwatch Institute claims that deforestation(采伐森林) has been speeding over the last 30 years. Buy Lomborg says that is simply rubbish. Since the dawn of agriculture the world has lost about 20% of its forest cover, but in recent decades the forest area's depleting has come to a stop. According to UN figures, the area of forests has remained almost steady, at about 30% of total land area, since 1940s. Forests in countries such as the US, UK and Canada have actually been expanding over the past 40 years. Despite all the warnings the Amazon rainforest has only shrunk by about 15%.

    Nor are all our species dying out. Some campaigners claim that 50% of all species will have died out within 50 years. But other studies show only 0.08% of species are dying out each year. Conservation efforts have been successful. Whales are no longer threatened and the bald eagle is off the endangered list.

    Environmental groups claim that many of the improvements are the results of their campaigns. Stephen Tindale, director of Greenpeace UK, said, “There are important examples, such as acid rain and ozone, where things weren't as bad as predicted, and that's because our behavior changed.”

    Many of us just laugh it away when they are told incredible (难以置信的) stories about other people, but I have a deep interest in these stories and I prefer to believe they are true. Here's one I collected from a total stranger.

    "Well, I was 11 when my family arrived at Fern Lake overlooking Trail Ridge Road in Rocky Mountain National Park. It was so beautiful to look miles across the Rockies and thousands of feet below into the valley. My parents were busy getting lunch out of the trunk so I climbed over the wooden fence to get closer to the cliff edge in the hope that I wouldn't miss any beautiful sight down there.

    I started down a little hill but soon started sliding on loose pebble rocks(鹅卵石). I fell on my back, but kept going faster and faster to what seemed the edge of the world (a 2,000 foot drop). In seconds I knew I was going to die. My feet and legs went first over the edge at a high speed. Then suddenly I felt two hands push hard on my chest and stopped me dead. My heart was racing and I slowly inched my body back to where I finally could make it back up the hill.

    My father was waiting there and screaming at me for doing such a dangerous stunt (特技). I tried to tell him and my mom about the hands that held me back, but to this day they don't believe me. They thought I was just trying to get out of trouble with a made-up story.”

    We parted ways, but I assured her that I believed every word of her story. I could see a little surprise and happiness on her face.

    That's why I always ask people to share their miracles (奇迹). Each real story makes my days full of hope and gratefulness.