It was a sunny winter day. I had gone down the tower when a blind man came toward me. He kept close to the wall, touching it lightly with his arm. I stood still and looked at him walking toward the tower.

    "What does a blind man want to climb up the tower for?" I wondered (疑惑). "Not the view(景色) certainly, perhaps he wants to jump. "Thinking of some terrible reasons, I thought I should 1 him.

    He went up slowly and 2 from time to time. I followed him a few steps behind. When he got to the first corner of the bell tower, I came close to him. "Excuse me, "I said as politely as I could, "but I wonder 3 you came up."

    He smiled, "Perhaps climbing up the tower. You have noticed — and yet, not being blind, perhaps you won't — how the sun shines into the tower 4 the windows here and there, so that one can 5the cool steps suddenly become quite warm, even in winter. But behind the wall there is shade(阴影). There is no place so good as this for feeling the difference between light and darkness. Though I'm blind, I also want to feel the 6 brought by the sunlight. In fact, it isn't my first time to be here." He said and seemed as    7 as a child.

    I had never thought that even a blind man could have his way to 8 the beautiful life. But we often paid no attention to its value because we never 9 it.

    We went down the 10 together and I left him. From then on, I began to treasure what life has given me.

    One day an American went to a small town in South America for his holidays. Few people went there because it was far away from the cities. He fell ill（生病） and wanted very much to see a doctor.

    The American went to find out how he could find a fine doctor there. A man told him, "That's very easy. If there is a patient（病人） that a doctor can't cure（治愈）, the doctor has to put a balloon over his clinic（诊所）. "

    The American thought, "The fewer balloons are, the finer the doctor is." He began to look for the finest doctor along the street. First he found a clinic. There were 20 balloons. After a few minutes he found another one-30 balloons. He thought neither doctor was fine.

    At last he found the third clinic. Only 5 balloons were there. He was very happy and went in.

    "Wait a minute," said the doctor. "I'm too busy, you know. This clinic opened only yesterday." The American was very much surprised（感到吃惊的） and said to himself, "Where can I find the finest doctor?"

    Rupert Isaacson was born in Africa, and grew up in London and in the English countryside, where he discovered his love of horses. Because he grew up hearing so many fascinating memories about Africa from his parents, he went there and lived with the people called The Bushmen of the Kalahari Desert.

    By the year 2000, Rupert was already working as a reporter, writing articles and guidebooks about Africa and India. He met his wife Kristin in India. Today, they live with their son, Rowan, in the US. But Rupert faced the greatest challenge of his life when, at the age of two, Rowan was

diagnosed (诊断) with an illness that influenced his ability to communicate with others.

    Rupert discovered that spending time with horses and riding them was helping Rowan. But unluckily, the Bushmen of the Kalahari do not have horses. So the family set out for Mongolia, where horses have been important for long. Rupert has written about this journey to help his son in his book Horse Boy, and he has produced a documentary of the same name. In the film, people have the chances to see the family travelling in Mongolia, riding horses and meeting healers (治疗师) in order to help Rowan.

    Because working with horses has helped Rowan, Rupert set up The Horse Boy Foundation on his farm in Texas. It is a school that teaches people how to use horses for healing. Besides writing another book, The Long Ride Home, about travelling with Rowan to Africa, Australia and Arizona in the US, Rupert has also produced the documentary Endangerous, with Rowan as host, about dangerous animals that are endangered. Rupert Isaacson has managed to discover the secret of turning one challenge into many achievements.

    It was the last day of the final examination in a college. On the steps of building, a group of engineering students were waiting for the last exam. On their faces was confidence.

    They knew the exam would be easy. The professor (教授) had said they could bring any books or notes during the test.

    Right after they came into the classroom, the professor handed out the papers. There were only five questions on it.

    Three hours passed. Then the professor began to collect the papers. The students no longer looked confident. On their faces was nervous expression. The professor watched the worried faces before him, and then asked, "How many of you have completed all five questions?" No hand was raised. "How many of you have answered four?" Still no hands. "Three? Two?" The students moved restlessly in their seats. "One, then? Certainly somebody has finished one." But the class kept silent. The professor said, "That is exactly what I expected. I just want to make you know clearly that even though you have completed four years of engineering, there are still many things about the subject you don't know. These questions you could not answer are common in everyday practice." Then, smiling, he added, "You will all pass this course, but remember, your education has just begun."

    The years have obscured the name of this professor, but not the lesson he taught.