When she looked ahead，Florence Chadwick saw nothing but a solid wall of fog.Her body was numb (麻木的)．She had been swimming for nearly sixteen hours.

    Already she was the first woman to swim the English Channel in both directions.Now，at age 34，her goal was to become the first woman to swim from Catalina Island to the California coast.

    On the morning of July 4th，1952，the sea was like an ice bath and the fog was so thick that she could hardly see her support boats.The wind was strong and it was raining heavily.Against the cold water of the sea，she struggled on—hour after hour.Millions of people at home were watching her in front of the television.

    In one of the boats，her mother and her trainer tried their best to encourage her.They told her it wasn't much farther.But all she could see was fog.They urged her not to give up.She never had...until then.With only a half mile to go，she asked to be pulled out.

    After thawing her cold body several hours later，she told a reporter，“Look，I'm not excusing myself，but if I could have seen land I might have made it.” It was not tiredness or even the cold water that defeated her.It was the fog.She was unable to see her goal.

    Two months later，she tried again.This time，despite the same thick fog，she swam with all her strength and her goal clearly pictured in her mind.She knew that somewhere behind that fog was land and this time she made it! Florence Chadwick became the first woman to swim the Catalina Channel!  

    My parents moved to Mississippi when my brother and I were small children, and we were separated from our Oklahoma grandparents by some 600 miles. This long distance allowed us to only visit our grandparents once a year, either at Christmas or during summer vacation.

    Most of my classmates lived near their grandparents, and I would often hear stories of big families regularly spending time with one another, fishing at “grandpa's” house or going over to “grandma's”for her famous fried chicken. We were disappointed that we did not get to spend more time with our grandparents, but our love for them remained deep and strong.

    We always expected a road trip to Oklahoma. We would count the days, and when the day came, the entire family would pile into our car at four o'clock in the morning. Crossing the Mississippi River into Louisiana, the scenery changed. Crossing the Red River in Oklahoma, we were in a foreign world.

    Every trip to see my grandparents can't be without bringing delight. We jumped out of the car in their driveway to be met with bear hugs. My grandparents wanted to know everything about their grandchildren, and we would sit for hours and tell story after story. Grandma had a meal planned, and you could guess she prepared her grandsons' favorite foods. Of course the best part of the visit was that we were able to do whatever we wanted without punishment from our grandparents. Grandma and Grandpa always had presents for us, short trips planned and lovely surprises, such as the time we got to a local restaurant and ate the world's largest hamburger.

    A generation ago young people longed to become lawyers and doctors. Now they desire to be the next Oscar winner or famous pop star. But one university psychologist has pointed out that this is damaging our self-image and sense of self-worth. Over recent years people around the world have been suffering from an increasing fear of their own “insignificance”, according to Dr. Strenger of Tel Aviv University.

    He began a project on the phenomenon 10 years ago, after noticing an increase of fear in his own patients. His findings note hundreds of research projects that have recorded an unprecedented (前所未有) increase in levels of anxiety and depression. By using a wide-ranging framework Dr. Strenger thinks he has given the accurate cause. “The impact of the global entertainment network on the individual is to blame,” he said. “A new species—global man—is born and we are defined by our close connection to the global entertainment network, which has turned ranking and evaluating people according to wealth and fame into an obsession (狂热).”

    As humans we naturally measure ourselves by those around us, but now we live in a “global village” where we are comparing ourselves with the most “significant” people in the world - and finding ourselves not good enough. Today, even high achievers constantly fear that they are insignificant when they compare themselves to success stories in the media. “This creates highly unstable personality and an unstable society,” Dr. Strenger said.

    Dr. Strenger says people should stop measuring their achievement through the cultural fantasies of rich and famous people. The remedy (治疗方法) is a process that he calls “active self-acceptance” through a continuing search for self-knowledge through life. The fear of insignificance can only be overcome through strong individual and cultural identity over and above measurable achievement. “People should invest time and thought in their personal growth from different aspects in the same way they invest in medical studies and law school,” Dr. Strenger advises.

    If you analyze people's actions, you will come to the conclusion that they all seek happiness. Every act is in fact a search for it, even if on the surface it doesn't look so. Happiness is always the main target.

    Going to the movies, eating in a restaurant and going to a party are all motivated by the desire to be happy. Who does not dream of a vacation in some fascinating locations, a new car, a new house, or the ideal match? All people daydream, and some even try to make their dream a reality. And why is that? In order to be happy!

    Many people endanger themselves by climbing steep mountains, entering unexplored caves, or diving into the deep of the ocean in order to enjoy the few moments of happiness. A thief may steal because he loves the thrill of danger, or because he desires to have quick money to spend. He is actually looking for happiness, though in a perverted way.

    Of course not all actions end in happiness. The motive is happiness, but the results do not always bring the desire. According to some spiritual traditions, we are spiritual beings in physical bodies. The spiritual part is always happy. Rather, it is happiness itself. But the physical body covers this happiness essence(本质). There is a constant desire to find out this happiness. This is the reason why happiness is constantly sought.

    However, there is no need to search for happiness or to create it, or to have all kinds of outer experiences and actions in order to feel it. On the contrary, everything has to be dropped in order to experience it. Every technique, which helps to relax the mind and calm the rush of thoughts will lead to happiness.

    Each applicant to Harvard College is considered with great care. We consider each applicant to Harvard College as a whole person, and put enormous care into evaluating every application. We hope you will explore the information in this section to understand what we look for in our admissions process.

    How to Apply

    Submit your application through the Common Application, the Coalition Application, or the Universal College Application. Each is treated equally by the Admissions Committee. Complete and submit your materials as soon as possible to ensure full and timely consideration of your application. View our Application Tips for step-by-step information.

    When to Apply

    What We Look For

    We seek promising students who will contribute to the Harvard community during their college years, and to society throughout their lives. While academic accomplishment is the basic requirement, the Admission Committee considers many other factors—strong personal qualities, special talents or excellences of all kinds, perspectives formed by unusual personal circumstances, and the ability to take advantage of available resources and opportunities.

    We outline everything you need to apply to Harvard.

    Click https: //college.harvard.edu/admissions/apply to get detailed requirements.

    City trees grow faster and die younger than trees in rural forestry, a new study finds. Over their lifetimes, then, urban trees will likely absorb less CO₂ from the air thah forest trees.

    As we all know, the earth would be freezing or burning hot without CO₂. However, CO₂ is a greenhouse gas, meaning it traps energy from the sun as/heat. That makes temperatures near the ground rise. Human activities, especially the widespread burning-of fossil(化石)fuels, have been sending extra greenhouse gases into the air. This has led to a rise in average temperatures across the globe.

    Studies had shown forests readily absorb CO₂, but there hadn't been much data on whether city trees grow, die and absorb CO₂ at the same rate as forest trees do. So some researchers decided to find out.

    To figure out how quickly trees were growing, researchers tracked their diameters (the width of their trunks) between 2005 and 2014. A tree's diameter increases as it grows, just as a person's waist size increases as they gain weight. About half the weight of a tree is carbon, research has shown. Most of the rest is water. Over the nine years' tracking, the researchers found city trees absorbed four times as much carbon from the air as forest trees. However, they were twice as likely to die. So over the lifetime of each type of tree, forest trees actually absorbed more CO₂.

    City trees grew faster because they had less competition for light from their neighbors. In a forest, trees tend to grow close together, shading their neighbors. Street trees also benefit from higher levels of nitrogen (氮)in rainwater. Nitrogen helps plants grow. Waste gases from gas-burning cars also contain nitrogen, thus enriching city air with nitrogen. Later, rainwater may wash much of it to the ground. Some street trees may also have better access to water than trees in the country because the underground water pipes can leak.