The Pathfinder

    When we found him, he was a sorry sight. His clothes were torn, his hands bleeding. Before we reached him, we saw him fall. He lay a moment. Then he pulled himself to his feet, walked unsteadily a few yards through the woods and fell again.

    After we got him out, we went back to find the gun that he had thrown down. His tracks showed that for two days he had circled in the forest, within 200 yards of the road. His senses were so dulled by fear and tiredness that he did not hear the cars going by or see the lights at night.

    We found him just in time.

    This man, like others before him, had simply been frightened when he knew he was lost. What had been a near disaster might have turned out as only a pleasant walk, had he made a few preparations before he stepped from the highway or off a known path.

    Whatever sense of direction that a man may have, it's still largely a question of observation. A skilled woodsman always keeps an eye on his surroundings. He notes that the shape of a mountain, the direction water flows through a swamp, and the way a tree leans across a path. With these in mind, he may be turned around many times, but he is seldom lost.

    There are exceptions, of course, and once in a while a man does come across some strange problem that puts him into the “lost” situation. A rainstorm or sudden blizzard may catch him without a compass (指南针) in his pocket. Darkness may find him in a rough area, where travel is dangerous without a light.

    When this happens, the normal first reaction (反应) is the fear of being laughed at as a result of his poor knowledge in the woods. He may also be concerned about the inconvenience that he will cause his friends when he doesn't show up. This false pride may lead him to keep on the move in a false effort to find his way against all difficulties.

    The person who thinks ahead is seldom in great danger. He'll be safe if he observes carefully, thinks ahead, and remains calm.

    For centuries, medical pioneers have refined a variety of methods and medicines to treat sickness, injury, and disability, enabling people to live longer and healthier lives.

    “A salamander (a small lizard-like animal) can grow back its leg. Why can't a human do the same?” asked Peruvian-born surgeon Dr. Anthony Atala in a recent interview. The question, a reference to work aiming to grow new limbs for wounded soldiers, captures the inventive spirit of regenerative medicine. This innovative field seeks to provide patients with replacement body parts.

These parts are not made of steel; they are the real things — living cells, tissue, and even organs.

    Regenerative medicine is still mostly experimental, with clinical applications limited to procedures such as growing sheets of skin on burns and wounds. One of its most significant advances took place in 1999，when a research group at North Carolina's Wake Forest Institute for Regenerative Medicine conducted a successful organ replacement with a laboratory-grown bladder. Since then, the team, led by Dr. Atala, has continued to generate a variety of other tissues and organs—from kidneys to ears.

    The field of regenerative medicine builds on work conducted in the early twentieth century with the first successful transplants of donated human soft tissue and bone. However, donor organs are not always the best option. First of all, they are in short supply, and many people die while waiting for an available organ; in the United States alone, more than 100,000 people are waiting for organ transplants. Secondly, a patient's body may ultimately reject the transplanted donor organ. An advantage of regenerative medicine is that the tissues are grown from a patient's own cells and will not be rejected by the body's immune system.

    Today, several labs are working to create bioartificial body parts. Scientists at Columbia and Yale Universities have grown a jawbone and a lung. At the University of Minnesota, Doris Taylor has created a beating bioartificial rat heart. Dr. Atala's medical team has reported long-term success with bioengineered bladders implanted into young patients with spina bifida (a birth defect that involves the incomplete development of the spinal cord). And at the University of Michigan, H. David Humes has created an artificial kidney.

    So far, the kidney procedure has only been used successfully with sheep, but there is hope that one day similar kidney will be implantable in a human patient. The continuing research of scientists such as these may eventually make donor organs unnecessary and, as a result, significantly increase individuals' chances of survival.

Ways to say “Happy birthday to me”

    Tomorrow is my birthday, and I'm at an age when not everyone looks forward to cakes and presents.

    {#blank#}1{#/blank#} It always makes me feel excited to be alive and grateful for my life and my family. So I think even if your birthday is a regular old day at work or home, there are some easy ways to raise it to the special occasion.

    Give a gift to someone else.{#blank#}2{#/blank#} While everyone loves to open a birthday present, there is a lot of joy and goodness to be gained from being generous with others. Making a birthday donation (捐赠) to a charity that means something to you.{#blank#}3{#/blank#}

    Try something new. Today is new to us. Why not enjoy the newness of the moment? Dip your tones into some new waters, sign up for an adult education class, go for a new-to-you park or plan a new trip. {#blank#}4{#/blank#}

    {#blank#}5{#/blank#} Whether or not you have the opportunity to share a meal, outing or party with friends and family, please take time on your birthday to connect with people who are important to your life, if you use social media like phones, you are likely filled with well—wishes from loved ones. Use these as a. jumping off point to start new conversations and reconnect with people who lift your spirits and support in your journey towards being your best self.

A.I love my birthday, though.

B. It's better to give than to receive.

C. Connect with people who matter to you.

D. This year my birthday is on a Saturday.

E. Freshen up yourself with countless opportunities.

F. One choice is to donate a dollar amount to match your age.

G. Download an app to learn a new language is also a good choice.

    The TED speaker series features "ideas worth spreading". With over 1,400 to choose from, we've selected a few that are perfect for students.

    ⒈Larry Smith: Why you will fail to have a great career

We humans may have an unfavorable habit of making excuses for ourselves or being too confident about ourselves. Accordingly, Larry Smith, a professor of economics at the University of Waterloo in Canada, tells us why most of us will fail to have a great career. Luckily, as he puts it, there is a way out—follow your heart, as long as it is good for your career.

    ⒉Andy Puddicombe: All it takes is 10 mindful minutes

Between dance team, volunteering and –oh, right—lectures, your life's crazy factor(因素)is about to go way up. In this entertaining and informative talk, Mindfulness, expert Andy Puddicombe teaches us how to be "more healthy, more mindful and less distracted" by taking just 10 minutes out of the day to be "more present".

    ⒊Shane Koyczan: To this day…for the bullied(欺凌)and beautiful

    This talk is sure to stay with you. Shane Koyczan's "To This Day" is an affecting spoken-word poem about bullying and being different that gained over 10 million views on YouTube. In this talk, Koyczan gives a live reading of the poem, along with some stories about his background.

    ⒋Susan Cain: The power of introverts(性格内向者)

    Does a cup of tea and a good book sound like a perfect Friday night? In this personal talk, Susan Cain argues that introverts have talents and abilities. Our culture may value being outgoing, but the world needs all kinds.

    The key to losing weight is to understand what really motivates you. Have you ever been excited about losing a few pounds? {#blank#}1{#/blank#}And to help you keep your weight under control, you need some strategies.

    Ask questions. When you're researching different dieting products and plans or even talking to a doctor about diets, ask as many questions as you can. {#blank#}2{#/blank#}Ask questions like: Do I have to purchase special meals or supplements? Does the program include a part to help me maintain my weight loss?

    Get real.{#blank#}3{#/blank#}Don't burden yourself with unrealistic expectations. Remember, large amounts of weight loss are not realistic and are most likely not safe or healthy. Talk with your health care professional to determine a healthy weight goal.

    {#blank#}4{#/blank#}To maintain your weight, you must balance your intake of calories with the energy you burn. Just 30 minutes of fast walking in most days can take about 10 pounds off your weight each year.

    Weigh yourself weekly. It's important to track your weight on any diet or weight loss plan, but don't get on the scale every day. Weighing daily won't show you the big picture.{#blank#}5{#/blank#}

A. Stay balanced.

B. Once a week is fine.

C. Stick with your healthy eating plan.

D. Losing one to two pounds a week is a realistic goal.

E. Being well informed will help you choose the best diet for you.

F. Regular weight check-ins will show you your progress over time.

G. If so, you must find a way to turn that excitement into determination.

Have you ever been labeled "perfectionist"? Or do you consider yourself to be one? It's inviting to see perfectionism as a desirable or positive quality. {#blank#}1{#/blank#}

Healthy perfectionists want to develop their skills continually. Their standards are always rising, and they approach work with optimism, pleasure and a desire to improve. Unhealthy perfectionists, however, are never satisfied with what they achieve. {#blank#}2{#/blank#} They may experience fear of failure, anxiety and other painful emotions.

{#blank#}3{#/blank#} According to a 2011 research, perfectionism is linked to health issues such as eating disorders and depression. Perfectionism can also seriously impact your creativity. This is because perfectionism can prevent you from leaving your comfort zone and taking risks. {#blank#}4{#/blank#} You may avoid starting a new project until you've found the best way to approach it. You might also get caught up in minor details or repeat tasks that have already been completed. As a result, this wastes time that could have been spent on more important tasks.

If you think that you have a problem with perfectionism, start by setting realistic goals. Think about your most important life and career goals. {#blank#}5{#/blank#}Not only will this make it easier to reach your objectives, but you'll also experience the thrill of achieving these smaller goals.

Perhaps Theodore Roosevelt said it best—"Do what you can, with what you have, where you are. " Accept that this is the best you can do and don't try and make up some perfect world.

A. If something isn't perfect, they refuse it.

B. Perfectionism can lead to self-criticism, too.

C. Perfectionism can damage your productivity, too.

D. Then, break them down into monthly or yearly steps.

E. In fact, severe perfectionism can do more harm than good.

F. They show that you're not afraid to push yourself and try new things.

G. When perfectionism gets out of control, it can harm you in many aspects.