Recently, I learned firsthand why it's a bad idea to judge people prematurely (过早地).

    I'm a nursing supervisor, and my job is to evaluate workers' performances at the hospital.

    Kenny was a new employee. After weeks' probation (试用), I had to admit that he was clean, punctual and efficient.

    But he had this self-assured and energetic presence. He was a large man, both physically and socially — he was independent and strong. I worried that our hospital, which demanded teamwork, was not right for such a personality.

    We had a patient named Mary. At 94 years old, Mary was weak. She had outlived her husband and sisters.

    Mary had an obsessive (强迫性的) belief that someone had taken her purse. She searched for it all the time. Unless tied to her wheelchair, she would go through the door onto the street mindlessly searching and never giving up. She was often sitting in her wheelchair in the hallway, where she stopped everyone who came near.

    “Can you lend me a comb?” she would ask. “I've lost mine. It was in my red purse. Where is my purse?”

    Every day it was the same. We all knew Mary didn't have a purse, but we would answer: “Sure, if I see your purse I'll bring it back.”

    One afternoon, I saw Kenny walking down the hall with a grocery bag. He walked toward Mary in her wheelchair. He pulled out a red purse.

    Mary's old hands flew up to her face in a gesture of wonder and joy, and then flew out hungrily like a starved child taking bread. Mary grabbed the red purse. She held it for a moment, and then pressed it to her breast, rocking it like a baby.

    Kenny leaned over, unzipped the purse open and showed Mary a comb inside. Tears of joy poured down Mary's face.

    Instead of paying lip service like the rest of us, Kenny had made Mary's problem his problem. I had been wrong about Kenny.

    One day, a poor man, who had only one piece of bread to eat, was walking past a restaurant. There was a large pot of soup on the table. The poor man held his bread over the soup, so the steam from the soup went into the bread, and gave it a good smell. Then he ate the bread.

    The restaurant owner was very angry at this, and he asked the man for money, in exchange for the steam from the soup. The poor man had no money, so the restaurant owner took him to Nasreddin, who was a judge at that time. Nasreddin thought about the case for a little while.

    Then he took some money from his pocket. He held the coins next to the restaurant owner's ear, and shook them, so that they made a dingling (叮当声) noise.

    “What was that?” asked the restaurant owner.

    “That was payment for you,” answered Nasreddin.

    “What do you mean? That was just the sound of coins!” said angrily the restaurant owner.

    “The sound of the coin is payment for the smell of the soup,” answered Nasreddin. “Now go back to your restaurant.”

    It was rainy, and I had no desire to drive up the winding mountain road to my daughter Carolyn's house. But she had insisted that I come to see something at the top of the mountain.

    So here I was, reluctantly making the two-hour journey through fog that hung like veils. By the time I saw how thick it was near the summit, I'd gone too far to turn back.

    Nothing could be worth this, I thought as I inched along the dangerous highway.

    "I'll stay for lunch, but I' m heading back down as soon as the fog lifts," I announced when I arrived.

    "But I need you to drive me to the garage to pick up my car," Carolyn said, "Could we at least do that?"

    "How far is it?" I asked.

    "About three minutes," she said, "I'll drive—I'm used to it."

    After ten minutes on the mountain road, I looked at her anxiously. "I thought you said three minutes."

    She grinned. "This is a detour."

    Turning down a narrow track, we parked the car and got out. We walked along a path that was thick with old pine needles. Huge black-green evergreens towered over us. Gradually, the peace and silence of the place began to fill my mind.

    Then we turned a comer and stopped—and I gasped in amazement.

    From the top of the mountain, sloping for several acres across the mountain side and valleys, were rivers of flowers in numerous colors. It looked as though the sun had tipped over and spilled gold down the mountainside.

    A series of questions filled my mind. Who created such beauty? Why? How?

    As we approached the home that stood in the center of the property, we saw a sign that read: "Answers to the Questions I Know You Are Asking."

    The first answer was: "One Woman—Two Hands, Two Feet, and Very Little Brain." The second was: "One at a Time." The third: "Started in 1958."

    As we drove home, I was so moved by what we had seen. I could scarcely speak. "She changed the world." I finally said, "one bulb (球茎) at a time. She started almost 40 years ago, probably just the beginning of an idea, but she kept at it."

    The wonder of it would not let me go. "Imagine," I said, "if I'd had a vision and worked at it, just a little bit every day, what might I have accomplished?"

    Carolyn looked at me sideways, smiling. "Start tomorrow," she said. "Better yet, start today."

    Tiny microbes(微生物)are at the heart of a new agricultural technique to manage harmful greenhouse gas. Scientists have discovered how microbes can be used to turn carbon dioxide into soil-enriching limestone(石灰石), with the help of a type of tree that grows in tropical areas, such as West Africa.

    Researchers have found that when the Iroko tree is grown in dry, acidic soil and treated with a combination of natural fungi(霉菌)and other bacteria, not only does the tree grow well, it also produces the mineral limestone in the soil around its root.

    The Iroko tree makes a mineral by combining Ca from the earth with CO2 from the atmosphere. The bacteria then create the conditions under which this mineral turns into limestone. The discovery offers a new way to lock carbon into the soil, keeping it out of the atmosphere. In addition to storing carbon in the trees, leaves and in the form of limestone, the mineral in the soil makes it more suitable for agriculture.

    The discovery could lead to reforestation(重新造林)projects in tropical countries, and help reduce carbon dioxide in the atmosphere in the developing world. It has already been used in West Africa and is being tested in Bolivia, Haiti and India.

    The findings were made in a three-year project involving researchers from the Universities of Edinburgh, Granada, Lausanne and Delft University of Technology. The project examined several microbiological methods of locking CO2 as limestone, and the Iroko-bacteria way showed best results. Work was funded by the European Commission under the Future Emerging Technologies (FET) scheme.

    Dr Bryne Ngwenya of the University of Edinburgh's School of GeoSciences, who led the research, said: "By taking advantage of this natural limestone-producing process, we have a low-tech, safe, readily employed and easily operating way to lock carbon out of the atmosphere, while improving farming conditions in tropical countries?

As the Chinese saying goes, a seed can change the world; a variety can benefit a nation.

Zhang Daorong, who has spent the last 26 years 1 13 new varieties of wheat and contributing to national food security, has done both. The 50-year-old, who is called the "mother of wheat", is a 2 at the Xiangyang Academy of Agricultural Sciences in Xiangyang city.

The research into new varieties requires strict standards and 3 experiments. "The first 4 is to find suitable parental types for a specific cultivation(培育) purpose. Then we try a hybrid(杂交的) combination," Zhang explained, "After several generations of 5 and selection, and when characteristics remain stable, we 6 a two-year process of yield testing and disease identification." And after several more founds of tests, a(n) 7 for evaluation and approval can be made for market production.

"Generally speaking, a good new 8 should produce high yields(产量), have stable production, and 9 good resistance to bad conditions," she added. "10 , it also should be accepted by the market."

Zhang added that the team 11 70,000 to 80,000 seedlings(幼苗) each year. All year round they were busy with 12 experiments on the growth of the new seedling sand making records and analyses.

"Agricultural research work is 13 and complicated. Sometimes your efforts do not 14 . All we can do then is think more, discuss more and find 15 on the land," she said.

A surprising new research from Auckland University of Technology (AUT), New Zealand contradicts the commonly held view that surfers are folks only focused on their own fun. Instead, they often play an important role in saving lives. The research reveals that these thrill seekers selflessly save people they see struggling in the ocean as swimmers or after boating incidents, and so actually reduce deaths from drowning (溺水), playing a key role in making beaches safer. 

According to the World Health Organization, an estimated 236,000 people drown worldwide each year, with drowning the third leading cause of unintentional death. 

However, according to a survey, at the heart of the research, life-saving acts of heroism by surfers who save others in difficulty in the ocean waters around them, are surprisingly common. In fact, based on the sample of 418 surfers, respondents reportedly rescue an average of three people drowning or struggling in the water over the course of their lives, and some even report taking part in 10 to 20 rescues. This makes surfers the under-recognized guardians of the beach rather than the self-centered images shown in movies like Fast Times at Ridgemont High, or Point Break. 

In addition, the survey found that in almost 90 percent of rescues, people aided by the responding surfers required no further treatment after the incident, making their help unlikely to be reported and so recorded, As one of the survey's co-authors Jamie Mead says, "We need to get surfers the recognition they deserve and do more research to accurately quantify (用数量表述) how many rescues they're actually doing."

Since this research was published, there has been a growing interest in the training of surfers in life-saving skills. Sonia Keeper, an experienced surfer and instructor, explains that the insights provided by the survey have motivated surfing organizations to expand their reach and connect with an even broader community of surfers. "If life-saving skills are rolled out (正式推出) to the broader coastal surfer communities around the world, this preparation can help ensure that a good day at the beach doesn't turn into a sad one," she adds.