Two of the saddest words in the English language are “if only”. I live my life with the goal of never having to say those words, because they convey regret, lost opportunities, mistakes, and disappointment.

    My father is famous in our family for saying, “Take the extra minute to do it right.” I always try to live by the “extra minute” rule. When my children were young and likely to cause accidents, I always thought about what I could do to avoid an “if only” moment, whether it was something minor like moving a cup full of hot coffee away from the edge of a counter, or something that required a little more work such as taping padding (衬垫) onto the sharp corners of a glass coffee table.

    I don't only avoid those “if only” moments when it comes to safety. It's equally important to avoid “if only” in our personal relationships. We all know people who lost a loved one and regretted that they had foregone an opportunity to say “I love you” or “I forgive you.” When my father announced he was going to the eye doctor across from my office on Good Friday, I told him that it was a holiday for my company and I wouldn't be here. But then I thought about the fact that he's 84 years old and I realized that I shouldn't give up an opportunity to see him. I called him and told him I had decided to go to work on my day off after all.

    I know there will still be occasions when I have to say “if only” about something, but my life is definitely better because of my policy of doing everything possible to avoid that eventuality. And even though it takes an extra minute to do something right, or it occasionally takes an hour or two in my busy schedule to make a personal connection, I know that I'm doing the right thing. I'm buying myself peace of mind and that's the best kind of insurance for my emotional well-being.

    “Our aim is to take our art to the world and make people understand what it is to move,” said David Belle, the founder of parkour ( also called free running－a kind of extreme sport).

    Do you love running? It is a good exercise, yet many people find it boring. But what if making your morning jog a creative one? Like jumping from walls and over gaps, and ground rolls? Just like the James Bond in the movie Casino Royale? Bond jumps down from a roof to a windowsill and then runs several blocks over obstacles on the way. It is just because of Bond's wonderful performances that the sport has become popular worldwide.

    Yes, that's parkour, an extreme street sport aimed at moving from one point to another as quickly as possible, getting over all the obstacles in the path using only the abilities of the human body. Parkour is considered an extreme sport. As its participants dash around a city, they may jump over fences, run up walls and even move from rooftop to rooftop.

    Parkour can be just as exciting and charming as it sounds, but its participants see parkour much more than that.Overcoming all the obstacles on the course and in life is part of the philosophy(理念) behind parkour. This is the same as life. You must determine your destination, go straight, jump over all the barriers as if in parkour and never fall back from them in your life, to reach the destination successfully. A parkour lover said, “I love parkour because its philosophy has become my life, my way to do everything.”

    Another philosophy we've learnt from parkour is freedom. It can be done by anyone, at any time, anywhere in the world. It is a kind of expression of trust in yourself that you earn energy and confidence.

    Spending money on a vacation may seem like a luxury（奢侈品）—but occasionally, you have to relax yourself. Here's where to go for a good time at an unbelievable value.

    Captiva Island, Florida

    Keep it simple by looking for seashells, or bicycling, jet skiing; you can even hit the tennis courts. The Summer Getaway package offers a fourth night free and rates from $209 a night, making the average for a four-night stay $157.Kids 12 and under eat breakfast free. You'll get a coupon（优惠券）book with more than $250 in savings on resort outlets（经销店）, from watersports, island cruises and more.

    Reyjavik, Iceland

    STA Travel Beats specializes in taking travelers to music festivals around the globe. It has an eight-day tour, Icelandic Beats, that takes you to the Icelandic Geothermal spas（水疗）, UNESCO world heritage sites, and black sand beaches. End your vacation at the Secret Solstice Festival on June 18. The tour is $1,218,not including airfare.

    Malpais, Costa Rica

    You get daily surfing instruction, sunset surf session, and yoga in the outdoor, oceanfront yoga studio in a week-long tour. As you get mind, body, and spirit together, keep it going with healthy meals at the beachfront restaurant. Prices are $2,895 for shared accommodations, $3,095 for private accommodations with shared bath, and $3,595 for private accommodations.

    Waterville Valley, New Hampshire

    Waterville Valley Resort is surrounded by 100 miles of trails in the White Mountain National Forest. If you get a Freedom Pass, you can save about $100 a day during a six-day tour; the pass enables you daily to have a two-hour mountain bike rental, unlimited tennis, a round of golf, and a kayak, canoe, or paddleboard rental. Rates start at $139 a night.

    For some people, music is no fun at all. About four percent of the population is what scientists call "amusic." People who are amusic are born without the ability to appreciate music or recognize musical notes (音调). Amusic people often cannot tell the difference between two-songs. Amusics can only hear the difference between two notes if they are far apart on the musical scale.

    As a result, songs sound like noise to an amusic. Many amusics compare the sound of music to pieces of metal hitting each other. Life can be hard for amusics. Their ability to enjoy music sets them apart from others. It can be difficult for other people to identify with their condition. In fact, most people cannot begin to understand what it feels like to be amusic. Just going to a restaurant or a shopping mall can be uncomfortable or even painful. That is why many amusics intentionally stay away from places where there is music. However, this can result in withdrawal and social isolation. "I used to hate parties," says Margaret, a seventy-year-old woman who only recently discovered that she was amusic. By studying people like Margaret, scientists are finally learning how to identify this unusual condition.

    Scientists say that the brains of amusics are different from the brains of people who can appreciate music. The difference is complicated, and it doesn't involve defective hearing. Amusics can understand other nonmusical sounds well. They also have no problems understanding ordinary speech. Scientists compare amusics to people who just can't sec certain colors.

    Many amusics are happy when their condition is finally diagnosed (诊断). For years, Margaret felt embarrassed about her problem with music. Now she knows that she is not alone. There is a name for her condition. That makes it easier for her to explain. "When people invite me to a concert, I just say, 'No thanks. I'm amusic,'" says Margaret. "I just wish I had learned to say that when I was seventeen and not seventy."

    Once I spoke at a high school. After the speech, I was asked to see a special student. An illness had kept the boy at home, but he had expressed an interest in meeting me, and it would mean a great deal to him. I agreed. He was Matthew. When he was born, the doctor told his parents that he would not live to see five, then they were told he would not make it to ten. Now he was thirteen. He wanted to meet me because I was a gold-medal weight lifter, and I knew about overcoming obstacles (障碍) and going for my dreams.

    I spent over an hour talking to Matthew. Never once did he complain (抱怨). He spoke about winning and succeeding and going for his dreams. He knew what he was talking about. He just talked about his hopes for the future, and how one day he wanted to lift weight with me.

    When we finished talking, I went to my briefcase and pulled out the first gold medal I won and put it around his neck. I told him he was more of a winner and knew more about success and overcoming obstacles than I ever would. He looked at it for a moment, then took it off and handed it back to me. He said, "You are a champion (冠军). You earned that medal. Someday when I get to the Olympics and win my own medal, I will show it to you."

    Last summer I got the news that Matthew had died and a letter Matthew had written me a few days before:

Dear Rick,

    My mom said I should send you a thank-you letter for the picture you sent me. The doctors tell me that I don't have long to live any more. But I still smile as much as I can.

    I told you some day I was going to the Olympics and win a gold medal. But I know now I'll never make it. But I know I'm a champion, and God knows that too. When I get to Heaven, God will give me my medal and when you get there, I will show it to you.

    Thank you for loving me.

Your friend,

Matthew

Steven Stein likes to follow garbage trucks. His strange habit makes sense when you consider that he's an environmental scientist who studies how to reduce litter, including things that fall off garbage trucks as they drive down the road. What is even more interesting is that one of Stein's jobs is defending an industry behind the plastic shopping bags.

Americans use more than 100 billion thin film plastic bags every year. So many end up in tree branches or along highways that a growing number of cities do not allow them at checkouts(收银台). The bags are prohibited in some 90 cities in California, including Los Angeles. Eyeing these headwinds, plastic-bag makers are hiring scientists like Stein to make the case that their products are not as bad for the planet as most people assume.

Among the bag makers' argument: many cities with bans still allow shoppers to purchase paper bags, which are easily recycled but require more energy to produce and transport. And while plastic bags may be ugly to look at, they represent a small percentage of all garbage on the ground today.

The industry has also taken aim at the product that has appeared as its replacement: reusable shopping bags. The stronger a reusable bag is, the longer its life and the more plastic-bag use it cancels out. However, longer-lasting reusable bags often require more energy to make. One study found that a cotton bag must be used at least 131 times to be better for the planet than plastic.

Environmentalists don't dispute (质疑) these points. They hope paper bags will be banned someday too and want shoppers to use the same reusable bags for years.