"Some secrets are hidden from health," wrote John Updike in his poem "Fever".

    I have experienced the truth of Updike's observation. My excellent health kept me from seeing some things—things that became secrets of sort.

    One relates to my son Chris. When I lost my health in March, I discovered something I had missed about him.

    Christopher has been a scholar and athlete through high school. He has behaved responsibly, engaged in community service. He has had an impressive peer group of  serious students.

    While I saw these things, I had missed before what I experienced while in hospital. Early on, Christopher offered the clearest and most forceful words about my need to be positive and to fight acute leukemia(急性白血病). He never left the room after a visit without making me promise that I would be mentally tough and positive.

    During the first week, he showed his own mental toughness, researching leukemia and learning what the chances were. He even stopped my doctor outside the room, introduced himself and asked directly what he thought of my chances. He processed the answer without overreaction.

    Christopher did admonish(劝告) me against my choice of words the first week at home. I had moved back into my room from weighing myself, discovering a thin figure I did not know. I announced to him and my wife, “dead man walking”. I thought it was a way to lighten the obvious. He saw it as negativity and was strongly against such thinking and talking.

    When I resisted taking medicine sometimes, Christopher formed a “good-cop-bad-cop” team with his mother. Betsy gently and patiently encouraged. He directly and forcefully insisted. He always made the logical arguments for why I needed to take some awful pills.

    My health had hidden something from me; my ill-health helped me to see it.

    When the population of the port town began to suffer from poisoning, the police came to find the cause of the poison. They thought someone was poisoning the people on purpose but no one knew how it was possible. Soon people took the position that the pork was poisoned. It was a popular food everyone ate and it could have possibly made everyone sick. Anyone who had possession of pork would throw it out. Even the poorest of the poor wouldn't eat pork. Signs were posted on poles and letters were sent to everyone to warn people of the pork. Shortly afterwards, even policemen in high positions were also getting sick.

    Soon it became political and popular. Politicians rushed to the town to talk about politics and promised how they would find the solution if they were elected. Everyone was so sick that they didn't care about politics. Everyone was in a position where he or she didn't know what to do anymore. They went to the post office to mail posts out asking for help. The poor town didn't know how to deal with the situation.

    One day, a well-known scientist from New York came to the town with a huge box containing many instruments and his possessions. He went to pools and the port and made measurements. He was quiet and polite. Then one day he made a speech at a newspaper meeting-room to announce his findings.

    “I'm sorry to say your water supply is so heavily polluted; it is poisoned. I know who has been poisoning you all for such a long time. It is you who have been poisoning yourselves with pollution. A great deal of rubbish has been thrown into the water day after day. No one here has taken good care of the environment. It is no wonder all of you have been sick.” Shocked at the news, the people present were lost in thought.

    Taking a shower is relaxing. You can hum a song, daydream or think about nothing, leaving the real world behind you. But did you know that showering can also benefit your mind?

    A research by Scott Barry Kaufman, a psychologist from Yale University in the US interviewed over 3,000 people around the world. It turned out that nearly two-thirds of the interviewees said they had experienced new ideas in the shower and were more likely to have them in the shower than at work.

    So why does a simple shower have such magic power? Science can explain it.

    Showering can help to raise our level of dopamine, a hormone (荷尔蒙) closely related to our creativity. “People vary in terms of their level of creativity according to the activity of dopamine”, explained Alice Flaherty, a famous American neuroscientist. “Taking a warm shower can make us feel relaxed and therefore make the dopamine level rise and bring ‘Aha!' moment to us.”

    Besides the chemical changes, showering may give you a break from what you feel you have been stuck with. Especially when you have thought hard all day about a problem, jumping into the shower can keep you from the outside world so that you can focus on your inner feelings and memories. In this way, according to American psychologist Shelley H. Carson, author ofYour Creative Brain, “a showering hour may turn into an ‘incubation (孵化) period' for your ideas.”

    Compared with sitting in front of a computer, taking a shower is something we do less frequently in our daily life. When showering, we get a fresh experience with the change of location, temperature and humidity. “New and unexpected experiences can lead to positive changes in thinking,” explained Kaufman. “Getting off the couch and jumping in the shower may create a distance and force you to think from a new point of view.”

    Showering allows us to enjoy the creative juices of our minds, but it needn't just be the bathroom where you get your inspiration. For instance, Gertrude Stein, a female American writer and poet, got new ideas by driving around a farm and stopping at different cows until she found the one that most inspired her. So try to create your own way to free your mind, whether it's a walk near the ocean, a country drive or reading a book at home.

    My first book had been rejected by every major American publisher. My first agent, wasn't communicating. My dream of a life as a successful author was in tatters.

"It isn't going to happen," I said to my friend. "And I have to accept it."

"If you lose faith in your product, no one else will have faith in it," she told me.

    And, I knew she was right. But, how could I believe in myself when I hit a wall at every turn? I knew I had a good product. The book featured interviews with world-famous people who had learned how to succeed and lead—the hard way. It had information that could help other people. As a consumer, I would have loved that book because it had the great wisdom I so desperately needed. And, their stories made for good reading. I had a good book. What I didn't have was a publisher. I had to find a way to get that book sold and on the shelves. But, how?

    The hardest challenge was forcing myself to do battle again. I had to find the strength to believe in myself when it seemed like no one else believed in me. When I hit a wall, I usually need to get more information to figure out what is going wrong. So, I did some research and found out that my initial vision for the book-where all the interview subjects got their own chapters-wasn't marketable to big publishers because that format does not sell tons of books. What I had to do was recognize, restructure and rewrite.

    I needed an agent. There are thousands of agents. Surely one of them was right for me. So, I started sending out query（询问）letters. Within a week, I had a dozen agents who wanted the book. I chose the one who I thought would believe in me and my dream. She did get me my choices of publishers.

    Hard won Wisdom wound up being a best-selling book. But, it almost never was.

    Hundreds of villages in rural India are using clean energy powered by the sun.

    This month, 61 households in the village of Baripatha in eastern India were given two solar lamps. Villagers had been using kerosene lamps at night. Kerosene produces pollution and can lead to fires.

    The Indian government wants to increase the use of solar energy by 500 percent in the next seven years. If it is to reach that goal, 100 gigawatts of power must come from solar by 2022.Now,just 4 gigawatts of power created in the country come from the sun.

    Officials say they want to slow the amount of greenhouse gas emissions. India is now the third largest producer of this gas. The gas contributes to climate change.

    Arunabha Ghosh is the head of the Council on Energy, Environment and Water, a policy research group in New Delhi.

    He says“in terms of the share of electricity capacity that Germany achieved through renewables, that transition took about 22 years for Germany. In India's case, which is a much poorer economy, India is planning to have a similar shift towards renewable energy and non-fossil energy” within 15 years.

    India's goal may be helped by the decreased cost of developing solar energy. The government says it wants investors to spend $ 100 billion over seven years in solar power. It is reducing taxes for some solar-related investments. And it is permitting non-Indians to invest.

    This week, Germany said it would spend more than $ 2 billion on solar projects in India. SunEdison, an American renewable-energy company, says it wants to invest $ 15 billion. SoftBank, a Japanese company, has announced it will partner with companies in India and China to spend up to $20 billion on solar energy projects. Trina Solar, a Chinese company, plans to spend $500 million to make solar panels.

    Some people in India are worried that there is not enough land for some of these projects. Many of the projects need large plots of land.

    Inderpreet Wadhwa created a company called Azure Power. It was one of the earliest investors in solar projects. He said most of them are being built in dry areas of the country, on land that cannot be farmed.

    Charles Darwin lived an unusually quiet life. In 1842, Darwin and his wife Emma moved from London to Kent in southern England to have as little disturbance (烦扰) as possible. They already had two children then, and would go on to have eight more in the country.

    Darwin had very regular (有规律的) habits. He rose early and went for a walk. After breakfast he worked in his study until 9：30 am, his most productive time of the day, and then read his letters lying on the sofa before returning to work.

    At midday he would go for another walk with his dog, stopping at his greenhouse to inspect (查看) his experiments. Then he would go for another walk around an area of woodland. While walking on his "thinking path", Darwin would consider his unsolved scientific problems.

    After lunch he read the newspaper and wrote letters. His network of friends provided information from all corners of the world.

    The Darwins were not very strict parents and the children were always seen running wild. Their father worked patiently to a background of playful shouts and little footsteps walking past his study door.

After dinner Darwin played backgammon (a game for two people to play) with his wife. He once wrote, "Now the result with my wife in backgammon stands like this: she... has won only 2,490 games, while I have won, hurrah (a cheer of joy or victory), hurrah, 2,795 games!"

    Although he had poor health, Darwin continued to publish (出版)a lot of creative works until his final book in 1881. He died the following year, aged 73.

    Rather than a quiet space in the local churchyard, which he called "the sweetest place on Earth", Darwin was given a state funeral (国葬) in London's Westminster Abbey.