Diamonds are considered the most famous and valuable jewel in the world. The precious stone for its great value is believed to be the symbol of wealth. Diamonds were made as a result of great volcanic beat and pressure. When a volcano is active, it sometimes explodes and causes great damage to the nearby towns.

    However, at the same time of such a disaster, diamonds were pushed towards the surface of the earth by a number of great volcanic explosions millions of years ago. Thus, it may be very likely to find a diamond after a volcanic eruption. Besides, diamonds are also found among the sand and stones of certain river beds, and in a few places on the floor of the sea, for they were washed down the mountain sides by the rain.

    Diamonds are very rare. There are not many places that produce such precious things in the world. During the last century adventurers from Europe went to Brazil, because they had heard that there were diamonds in the River Amazon. Many of these early diamond miners died of illness or were lost forever in the great forests. But some returned home rich.

    The earliest known diamonds were found in India many centuries ago. The most recent and exciting discoveries have been made in eastern Russia. But most of the world's diamonds now come from the Congo, from Tanzania-which has the largest diamond mine in the world and also from South Africa.

    It was a warm April day when a big fat envelope came in the mail from the only college I had ever imagined attending. I tore open the packet. My eyes were fixed on the word “congratulations”. I don't remember ever smiling so wide.

    Then I looked at my financial(财政的) package.

    The cost of Dream School's tuition(学费), room and board was around ＄40,000 ? An impossible sum! How could I afford to attend? What good reasons did I have to go there when three other fine colleges were offering me free tuition? My other choices were good, solid schools even if they weren't as famous as my first choice.

    In my mind, attending my dream university would be the only way to realize my dream of becoming a world-class writer. My parents understood how I felt. They told me that even though it would be a financial problem, I could go wherever I would be happiest. But as I was always careful with money, I wasn't sure what to do.

    One of the schools that offered me a full ride had an informational dinner one night in the spring. Considering my parents' financial difficulties, I decided to drive the 45 minutes and attend. At first, all I had planned to do was smile politely, eat free food, listen quietly. But I surprised myself.

    At dinner the president of the university talked about the wonderful activities on campus (校园) including guest lectures and social gatherings. He also made it perfectly clear that free food would be offered at all future events. He continued with explanations of professors, class sizes, activities, and sporting events on campus. As he spoke, I began to realize that this school, though not as good as my first choice, might be the best one for me. It seemed small yet with many great programs. It seemed challenging yet caring.

    As the president ended his speech, we clapped politely and pushed back our chairs. As I walked out of that door, a feeling of comfort washed over me. Looking at the campus that night, I realized that I would be spending the next four years right there.

    In all honesty, my university is not as well-known as my “dream” university. However, it turned out to be the right choice of schools for me.

Scholastic Art: What is your job?

Jayson Fann: I build human-sized nests all over the world.

SA: Can people sit in your nests?

JF: Yes! People have dinner parties in my nests. They read and relax in them. Some of my nests even have several rooms. My nests are even used as hotel rooms.

SA: How do you make a nest?

JF: First, I make a design for the nest. Then I review the design with my client（客户）. After the design is final, I collect wood and work with a team to build it.

SA: What do you use to make your nests?

JF：I use eucalyptus（按树）wood， which is soft and easy to bend when it is young and freshly cut. But when it dries, it becomes extremely hard. So it holds its shape and can support weight. But the structure's strength also comes from the engineering -- how I weave the wood, and how I join major sections by bolting（用螺栓固定）them together.

SA: What makes a great nest design?

JF: Placement is important. The lines of the branches（树枝） create movement and energy, resulting in a cleaner, simpler background -- such as smooth stone or the sky -- which really fits the nest. For me, it's all about balance.

SA: What skills do you need for your job?

JF: You have to be able to draw and use different artistic tools. But you also have to know how to speak to people -- your clients and the people who work for you.

SA: What inspires you?

IF: I love to see how other artists, like Andy Goldsworthy, take common and natural materials and make something special with them.

SA: What is the best part of your job?

JF: I get to be creative in a way that doesn't harm the environment!

    An introduction to this book is as superfluous as a candle in front of a powerful searchlight. But a convention of publishing seems to require that the candle should be there, and I am proud to be the one to hold it. About ten years ago I picked up from the pile of new books on my desk a copy of Sons and Lovers by a man of whom I had never heard, and I started to race through it with the immoral speed of the professional reviewer. But after a page or two I found myself reading, really reading. Here was—here is—a masterpiece in which every sentence counts, a book packed with significant thought and beautiful, arresting phrases, the work of a remarkable genius whose gifts are more richly various than those of any other young English novelist.

    To appreciate the rich variety of Mr. Lawrence we must read his later novels and his volumes of poetry. But Sons and Lovers reveals the range of his power. Here are combined and blended(混合的) sort of “realism” and almost lyric(抒情的) imagery and rhythm. The speech of the people is that of daily life and the things that happen to them are normal adventures and accidents; they fall in love, marry, work, fail, succeed, and die. But of their deeper emotions and of the relations of these little human beings to the earth and to the stars, Mr. Lawrence makes something near to poetry and prose(散文) without violating its proper “other harmony.”

    Take the marvellous paragraph on next to the last page of Sons and Lovers (Mr. Lawrence depends so little on plot in the ordinary sense of the word that it is perfectly fair to read the end of his book first):

    Where was he? One tiny upright speck of flesh, less than an ear of wheat lost in the field. He could not bear it. On every side the immense dark silence seemed pressing him, so tiny a spark, into extinction, and yet, almost nothing, he could not be extinct. Night, in which everything was lost, went reaching out, beyond stars and sun, stars and sun, a few bright grains, went spinning round for terror, and holding each other in embrace, there in the darkness that outpassed them all, and left them tiny and daunted(气馁). So much, and himself, infinitesimal, at the core a nothingness, and yet not nothing.

    Such glorious writing lifts the book far above a novel which is merely a story. I beg the reader to attend to every line of it and not to miss a single one of the many sentences that await and surprise you. Some are enthusiastic and impressive, like the paragraph above; others are keen, “realistic” observations of things and people. In one of his books Mr. Lawrence makes a character say, or think, that life is “mixed.” That indicates his philosophy and his method. He blends the accurately literal and trivial(琐碎的) with the extremely poetic.

    To find a similar blending of tiny daily detail and wide imaginative vision, we must go back to two older novelists, Hardy and Meredith. I do not mean that Mr. Lawrence derives(源于) immediately from them or, indeed, that he is clearly the disciple(弟子) of any master. I do feel simply that he is of the elder stature(名望) of Hardy and Meredith, and I know of no other young novelist who is quite worthy of their company. When I first tried to express this comparison, this connection, I was contradicted by a fellow-critic, who pointed out that Meredith and Hardy are entirely unlike each other and that therefore Mr. Lawrence cannot resemble both. To be sure, nothing is more hateful than forced comparisons, nothing more boring than to discover parallels between one work of art and another. An artist's mastery consists in his difference from other masters. But to refer a young man of genius to an older one, at the same time pronouncing his independence and originality, is a fair, if not very superior, method of praising him.

    Charity is simple in theory：A heart warms, a hand reaches out. In practice, though, charity can become a troubled mix of motives and consequences. Giving can be driven by guilt, duty, praise, or perhaps the hope that giving will somehow make up for past cruelty or ignorance. Too little charity is far less than valuable. Too much can cause dependence which makes the receiver continuously ask for more.

    Giving from the heart is good. But critics have long worried about misdirected charity that does more harm than good. In his 2012 book, "Harmful Charity: How Churches and Charities Hurt Those They Help（And How to Solve the Problem）, "Robert Lupton, an experienced social worker of 40 years of community work in inner-city Atlanta, argues that charity must not do for the poor what they can do for themselves.

    Due to emergencies such as natural disasters, the afterward financial aid is greatly welcome. Mr. Lupton advocates it should focus on the development of self-supporting. The task can be carried out via, for instance, offering microloans, hiring local builders and suppliers, and trying to found self-supported, locally owned and operated enterprises. What seldom works, he argues, are untargeted handouts from far-off providers and the sudden arrival of inexperienced volunteer-tourists hoping to earn personal reputation by digging wells or mending roofs that locals are perfectly able to take care of themselves.

    Getting charity right isn't easy. But from money raising to the boom in volunteering among Millennials（千禧一代）, from the increasing worldwide willingness to give to the efforts by charity organizations to become more effective and fruitful, there is strong evidence that human beings' ability of taking care of others is growing along with their ability to help without harming.

    Charity can be as simple as holding the door for a stranger and as complex as a global campaign to get rid of malaria（疟疾）.Charity works best when it returns the weak to strength, when it helps a small town shaken by a heavy earthquake get back on its feet. A successful charity is one that eventually is no longer needed.

    (The New York Times, Oct.7) The 2019 Nobel Prize in physiology(生理学) or medicine was jointly awarded to three scientists — William G. Kaelin Jr., Peter J. Ratcliffe and Gregg L. Semenza — for their work on how cells sense and adapt to oxygen availability. The Nobel Assembly announced the prize at the Karolinska Institute in Stockholm on Monday.

    Their work established the genetic mechanisms(机制) that allow cells to respond to changes in oxygen levels. The findings have implications(启示) for treating a variety of diseases.

    Why did they win?

    "Oxygen is the lifeblood of living organisms(生物体)," said Dr. George Daley, dean of Harvard Medical School. "Without oxygen, cells can't survive." But too much or too little oxygen can be deadly. The three researchers tried to answer this question: How do cells regulate their responses?

    The investigators uncovered detailed genetic responses to changing oxygen levels that allow cells in the bodies of humans and other animals to sense and respond to fluctuations(波动), increasing and decreasing how much oxygen they receive.

    Why is the work important?

    The discoveries reveal the cellular mechanisms that control such things as adaptation to high altitudes and how cancer cells manage to hijack(攫取) oxygen. Randall Johnson, a member of the Nobel Assembly, described the work as a "textbook discovery" and said it would be something students would start learning at the most basic levels of biology education.

    "This is a basic aspect of how a cell works, and I think from that standpoint alone it's a very exciting thing." Johnson said.

    The research also has implications for treating various diseases in which oxygen is in short supply — including anemia, heart attacks and strokes — as well as for treatment of cancers that are fed by and seek out oxygen.