When I was a little girl, I remember that when my dad was repairing something, he would ask me to hold the hammer, so we would have time for a conversation with each other. I never saw my dad drinking or taking a night out. All he did after work was taking care of his family.

    I grew up and left home for college and since then, my dad had been calling me every Sunday morning. And when I bought a house several years later, my dad painted it by himself in the fierce summer heat. All he asked was to talk to him, but I was too busy in those days.

    Four years ago, my dad visited me. He spent many hours putting together a swing for my daughter. He asked me to have a talk with him, but I had to prepare for a trip that weekend.

    One Sunday morning we had a telephone talk as usual. I noticed that my dad had forgotten some things that we discussed lately. I was in a hurry, so our conversation was short. Several hours later that day I received a call. My father was in the hospital. Immediately I bought a plane ticket and on my way I was thinking about all the occasions I missed to have a talk with my dad. By the time I arrived at the hospital, my father had passed away. Now it was he who did not have time for a conversation with me. I realized how little I knew about my dad, his deepest thoughts and his dreams.

    After his death I learned much more about him and even more about myself. All he ever wanted was my time. And now he has all my attention every single day.

    Forty-three years seems like a long time to remember the name of a mere acquaintance. I have forgotten the name of an old lady who was a customer on my paper route. Yet it seems like just yesterday that she taught me a lesson in forgiveness.

    On a Saturday afternoon, a friend and I were throwing rocks onto the roof of the old lady's house. The object of our play was to observe how the rocks changed to missiles （导弹）as they rolled to the roof's edge and shot out into the yard like comets （彗星）falling from the sky. I found myself a perfectly smooth rock and sent it for a ride. However, it slipped from my hand as I let it go and headed straight for a small window. At the sound of crashed glass, we knew we were in trouble and ran away.

    A few days later, when I was sure that I hadn't been discovered, I started to feel guilty for her misfortune. She still greeted me with a smile each day when I gave her the paper, but I was no longer able to act comfortably in her presence. I made up my mind to save my paper delivery money, and in three weeks I had the seven dollars that I calculated would cover the cost of her window. I put the money in an envelope with a note, and put the envelope through the letter slot in her door.

    The next day, I handed the old lady her paper and was able to return the warm smile that I was receiving from her. She thanked me for the paper and said, “Here, I have something for you.” It was a bag of cookies. I thanked her and began to eat the cookies as I continued my route.

    After several cookies, I felt an envelope and pulled it out of the bag. When I opened the envelope, I was surprised. Inside were the seven dollars and a short note that said, “I'm proud of you.”

    "Don't answer it," I said to Sam. Our door in the inner city is constantly knocked on; our previous door in the suburbs rarely so. Sam has a full-time job and cannot spend his days answering requests to fix leaking baths or carry cash to the bank.

    Sam opened the door and it was Mervin.

    "There's a bird on the second floor," he said. "It's in trouble."

    Sam followed Mervin upstairs. Mervin pointed and turned to let Sam look. It was a pigeon, the most common of all birds, the bird most likely to foul (弄脏) your newly washed car. And it wasn't flying away. It was stamping in circles. As Sam bent to look, Mervin coughed, "Number two."

    Sam asked him to repeat that. "Number two," Mervin said. "The pigeon has been sitting in his own number two, and now it's stuck to his foot."

It had rained for five days, and the bird was young. It could have been sheltering in a     wet nest of its own waste, which had then dried on its foot, preventing it from flying away. The pigeon moved in a few more circles. Sam bent to take another look. Mervin said, "All right, then." and walked away.

    "Why does everyone think you must solve the problems around here?" I said to Sam when he returned with his story. "It's a bird. Just leave it on the stairs, and let nature take its course." Sam didn't agree. Then he went to the garage and emptied the cardboard box containing our imported camping mats. He returned with the gray pigeon in the box. He showed the bird to our children and they decided to keep it.

    They put its foot in the warm water bath and got rid of its waste. Immediately the pigeon erupted in a bomb of feathers and began flying.

    Nola (August 21, 1974 -November 22, 2015) was a northern white rhino（犀牛）who lived at the San Diego Zoo Safari Park near Escondido, California. At her death, she was one of only four remaining northern white rhinos in the world. The other three lived in Kenya. World Rhino Day, held on September 22, is to raise awareness of the less than 30,000 other rhinos left on Earth.

    "Rhinos need our help today, not tomorrow," Nola's lead keeper Jane Kennedy said. "Last year we lost over 1,200 rhinos just in South Africa. If we continue to lose more than 1,000 rhinos a year, in 10 to 20 years all the rhinos on the planet will be gone."

    "Unfortunately, most animals are in danger of dying out because of humans," Kennedy says." Humans have either poached（偷猎）animals, or because there are over seven billion of us, we've taken up too much of the world's resources ". Poachers illegally hunt rhinos for their horns. They sell the horns for thousands of dollars per pound, to be used for art, jewelry, and decorations. Experts believe that one rhino is poached every eight hours.

    In 1975, the San Diego Zoo Institute for Conservation Research started the Frozen Zoo, a program through which researchers have collected cell (细胞) samples from more than 8,000 different types of animals, including the northern white rhino. Scientists hope that by studying the rhino cells, they will get greater understanding of it, and will find ways to increase its numbers.

    Jane Kennedy describes World Rhino Day as "a celebration of rhinos along with an awareness campaign for everybody across the world to know that rhinos need our help." At the San Diego Zoo, children and adults are welcome to visit and speak with zookeepers to learn about rhinos. But you don't have to live in San Diego to celebrate World Rhino Day. It is observed around the world, with zoos and wildlife parks holding special events and programs to teach people about rhinos, and enable them to see the animals up close. For more information, go to www.worldrhinoday. org.

    Give yourself a test. Which way is the wind blowing? How many kinds of wildflowers can be seen from your front door? If your awareness is as sharp as it could be, you'll have no trouble answering these questions.

    Most of us observed much more as children than we do as adults. A child's day is filled with fascination, newness and wonder. Curiosity gave us all a natural awareness. But distinctions that were sharp to us as children become unclear; we are numb(麻木的）to new stimulation(刺激), new ideas. Relearning the art of seeing the world around us is quite simple, although it takes practice and requires breaking some bad habits.

    The first step in awakening senses is to stop predicting what we are going to see and feel before it occurs. This blocks awareness. One chilly night when I was hiking in the Rocky Mountains with some students, I mentioned that we were going to cross a mountain stream. The students began complaining about how cold it would be. We reached the stream, and they unwillingly walked ahead. They were almost knee-deep when they realized it was a hot spring. Later they all admitted they'd felt cold water at first.

    Another block to awareness is the obsession(痴迷) many of us have with naming things. I saw bird watchers who spotted a bird, immediately looked it up in field guides, and said, a "ruby-crowned kinglet" and checked it off. They no longer paid attention to the bird and never learned what it was doing.

    The pressures of "time" and "destination" are further blocks to awareness. I encountered many hikers who were headed to a distant camp-ground with just enough time to get there before dark. It seldom occurred to them to wander a bit, to take a moment to see what's around them. I asked them what they'd seen. "Oh, a few birds," they said. They seemed bent on their destinations.

    Nature seems to unfold to people who watch and wait. Next time you take a walk, no matter where it is, take in all the sights, sounds and sensations. Wander in this frame of mind and you will open a new dimension to your life.

    If your life were a book and you were the author, how would you want your story to go? That's the question that changed my life forever.

    At the age of 19, I became a massage therapist(治疗师). For the first time in my life, I felt free, independent and completely in control of my life. That is, until my life took a detour. I was diagnosed with bacterial meningitis. Over the course of two months, I lost my spleen(脾), my kidneys, and both of my legs below the knees.

    One day, I went home. I crawled into bed and this is what my life looked like for the next few months me passed out, escaping from reality, with my legs resting by my side. I was completely physically and emotionally broken. But I knew that in order to move forward, I had to let go of the old Amy and learn to embrace the new Amy. And that is when I began to realize that I didn't have to be small any more. I could be as tall as I wanted or as short as I wanted depending on whom I was dating. And if I snowboard again, my feet aren't going to get cold. And the best of all, I thought, I can make my feet the size of all the shoes that are on the sales shelf. And I did!

    I started snowboarding. Then I went back to work. And then I co-founded a non-profit organization for physical disabilities so that they could get involved in action sports. And just this past February, I won two World Cup gold medals, making me the highest-ranked adaptive female snowboarder in the world.

    Eleven years ago, when I lost my legs, I had no idea what to expect. But if you ask me today, if I would ever want to change my situation, I would have to say no, because my legs haven't disabled me. They've forced me to rely on my imagination and to believe in possibilities, and that's why I believe that our imaginations can be used as tools for breaking through borders, because in our minds, we can do anything and we can be anything. It's belief in those dreams and facing our fears directly that allow us to live our lives beyond our limits.