When I was a very little child, I remember watching TV and seeing other children suffer in other parts of the world. I would talk to myself, "when I grow up, when I can become rich, I'll save kids all over the world."

    At the age of 17, I began my career here in America, and by 18, I started my first charity organization. I went on to team up with other organizations in the following years, and met, helped, and even lost some of the most beautiful souls, from six-year-old Jasmina Anema who passed away in 2010 from leukemia (白血病)—her story inspired thousands to volunteer as donors, to 2012 when my grandmother lost her battle with cancer, which is the very reason and the driving force behind the Clara Lionel Foundation (CLF). We're all human. And we all just want a chance: a chance at life, a chance in education, a chance at a future, really. And at CLF, our mission is to impact as many lives as possible, but it starts with just one.

    People make it seem too hard to do charity work. The truth is, you don't have to be rich to help others. You don't need to be famous. You don't even have to be college-educated. But it starts with your neighbor, the person right next to you, the person sitting next to you in class, the kid down the block in your neighborhood. You just do whatever you can to help in any way that you can. And today, I want to challenge each of you to make a commitment to help one person, one organization, one situation that touches your heart. My grandmother always used to say, "If you've got a dollar, there's plenty to share."

    School days are supposed to be the best days of your life and part of that experience usually involves some unforgettable physical activities. I asked some people to give me their memories of what happened to them on the sports field and beyond, and this is what they told me.

    Cup winners

    When I was about ten, the football team from our year unexplainably made it to the cup final of the local schools' league. I say unexplainably because I only remember us losing nearly every match we played. Anyway, in the final I set up the winning goal, a brilliant cross to my mate David who headed the ball in just before the final whistle. I still have a photograph of the team holding the cup.

    Forest hike

    I remember having to lead a group of eight boys on a school expedition for the best part of two days when I was a teenager. Even though we got lost at one point, I managed to keep them all together and get them from one end of a large forest to the other and back by sheer(纯粹的)force of will. I was chosen to be the leader, I think, because I was the only one who knew how to read a map!

    When we arrived back at the campsite, we found out that all the other groups had cheated and hitched(搭便车)most of the way instead… I felt a bit stupid, but also rather proud of myself at the same time for having done it properly.

    Learning to swim, learning to drown

    I learned to swim comparatively late, I suppose. I was maybe nine years old but my brother had a painful experience which nearly put him off for life. We lived in the USA for a while and had access to a university pool where the coaches had trained the American Olympic team. In those days, though, their idea of teaching kids how to swim was to tie a can to their ankles with a bit of string, throw them in the deep end and shout "Swim!". I am surprised my brother survived at all. He could only have been about six at the time.

A Letter that Changed My Life

    I was about 30 years old and was working as a firefighter in the South Bronx's Engine Co. 82. It was a restful Sunday and between alarms I rushed to the office to read a copy of the New York Times. I read an article on the Book Review section which openly stated what I took to be a calumny – that William Butler Yeats had gone beyond his Irishness and was forever to be known as a universal poet. As I read it, my blood began to boil.

    There were few things I was more proud of than my Irish heritage, and ever since I first picked up a book of his poems from a shelf when I was in the military, Yeats had been my favorite Irish writer, followed by Sean O'Casey and James Joyce.

    I grabbed a piece of paper and wrote out a letter of anger to the editor. Throughout Yeats' poetry, his view of the world and the people in it was basically Irish. He had lived his life and written his poetry through the very essence of his Irish sensibility. It was offensive to think Irishness was something to be transcended(超越).

    I don't know why I felt it my duty to safeguard the reputation of the world's greatest poet. I just knew that I had to write that letter.

    After my letter got published, I received a letter from The New Yorker, asking for an interview. When my article Fireman Smith appeared in that magazine, the editor of a large publishing firm called me, asking if I was interested in writing a book about my life. I had little confidence to write a whole book, though the subject was worthy. I wrote Report From Engine Co. 82 in six months, and it sold really well. In the years that followed, I wrote three more best-sellers.

    Being a writer had been far from my expectations. How had it happened? I often found myself thinking about it, and my thoughts always came back to that letter to the New York Times. For me, the writing was a natural consequence of the passion I felt and the subjects represented the great values burning within me as I wrote.

    Over the years, my five children have come to me with one dilemma or another. My answer is always the same. Think about what you're feeling and measure the heat of the fire in your heart, for that is your passion. Your education and your experience will guide you toward making a right decision, but your passion will enable you to make a difference in whatever you do. That's what I learned the day I stood up for Ireland's greatest poet.

    Wolves are important animals in the traditions and stories of most Native American tribes. To Native Americans, wolves often represent bravery. The animals also are signs of strength, loyalty, and success at hunting. Other cultures--such as the ancient Celtic and Nordic peoples-also placed high value on wolves.

    However, from the wolves in horror films to the wolves in children's stories, wolves get a bum rap(不公正的惩罚) in both literature and English expressions.

    To begin with, there is the term lone wolf. The lone wolf isn't a bad person. But they like to do things on their own. However, the term can mean something less than desirable. Lone wolf makes you think the person doesn't want to be around people because he or she dislikes them.

    Now, let's move on to the home.

    Parents might criticize their children for wolfing down their food. In other words, the child eats very quickly and without care. And if someone says a child was raised by wolves, that child has bad manners and is behaving like a wild animal. A wolf at the door means someone to whom you owe money is waiting just outside your door.

By the way, there are two popular wolf-related expressions that come from Aesop, the ancient Greek storyteller.

    The first is a wolf in sheep's clothing. A wolf in sheep's clothing describes someone who acts and looks nice on the outside but is bad on the inside.

    Aesop's other wolf fable also involves a shepherd, but not a hardworking one. He is known as the boy who cried wolf. People who cry wolf are not trusted. People are so familiar with this story, you simply have to say cry wolf for them to know what you mean.

    Nature calms our stressed-out soul. Nature is the best medicine, but new research is showing how little time we need to set aside to harvest the benefits.

    In one new study, researchers tried to find the most effective "dose" (药剂) of nature within the context of normal daily life. As more doctors prescribe (开药方) nature experiences for stress relief and other health benefits — sometimes referred to as a "nature pill"— the study's authors hoped to make the details of these treatments clear.

    "We know that spending time in nature reduces stress, but until now it is unclear how much is enough, how often to do it, or even what kind of nature experience will benefit us," says lead author MaryCarol Hunter in a statement. "Our study shows that for the greatest payoff, in terms of efficiently lowering levels of the stress hormone cortisone (压力荷尔蒙激素), you should spend 20 to 30 minutes sitting or walking in a place that provides you with a sense of nature."

    A nature pill can be a low-cost, low-risk way to curb the negative effects of urbanization and indoor lifestyle. To find the most efficient dosage, Hunter and her co-authors asked 36 city citizens to have nature experiences of at least 10 minutes three times per week over eight weeks.

    Every two weeks, the researchers collected saliva (唾液) samples to measure levels of the stress hormone cortisone, both before and after the participants took a nature pill. The data showed that just a 20-minute nature experience was enough to significantly reduce cortisone levels. The effect was more efficient between 20 and 30 minutes, after which benefits continued to increase but at a slower rate.

    That fits with the findings of another recent study, which found that spending 20 minutes in an urban park can make you happier, no matter whether you use that time to exercise.

    For this study, 94 adults visited 3 urban parks in Mountain Brook, Alabama, completing a questionnaire about their subjective well-being before and after their visit. An accelerometer (加速计) tracked their physical activity.

    A visit lasting 20 to 25 minutes showed the best results, with a roughly 64% increase in the participants' self-reported well-being, even if they didn't move a great deal in the park. That last point is particularly positive, since it means anyone can benefit from visiting a nearby park, whatever his or her age or physical ability.

    "There is increasing pressure on green space within urban settings," said a UAB professor Gavin Jenkins. "Planners and developers look to replace green space with residential (住宅的) and commercial property. The challenge facing cities is that there is increasing evidence about the value of city parks but we continue to see the disappearance of these spaces."

Let's do something in our daily life for the environment and the earth.

An English teacher has introduced a play to her class.

Characters: Benny, Jerry, Susie, Grace

Time: One Sunday afternoon.

Place: By the river near their houses.

（The four teenagers have just finished the picnic. They are tidying up.）

Benny: Wow! That was a great picnic. I'm so full that I can hardly move.

Grace: That's no excuse for not tidying up, Benny. Come over here and help me pack（包装）up the leftover food. Jerry, please? And clean up the place.

Jerry: （Speaking unhappily to himself.）How can I always get the dirty and difficult jobs? It's not fair.

（Jerry throws a bit of water on the fire. Then he picks up the ashes（灰烬）with an old newspaper and wants to throw them into the long grass.）

Susie: （Sounding surprised）What are you doing, Jerry? That's d....

Jerry: Whoop...the paper has caught fire.

Susie: And the grass…Benny, Grace, help! Help!

（Benny and Grace come over quickly. They help put out the fire completely.）

Jerry: Oh, no. Oh, no! What have I done? 

Grace: You know that we should do everything carefully, don't you? 

Jerry: （With his head in his hands.）Yes. What have I done? What have I done?