【答案解析】As a book-worm, I like reading biographies about famous people, especially those successful businessmen. I admire their wisdom and often dream of making fortune overnight. My recent experience convinces me that I have some talent in doing business. As a senior student, I have many used books. Being reluctant to sell them as rubbish, I chose to sell them on the flea market on campus in hope of earning some money. However my first day turned out to be a complete failure: I sold no books. I reflected on my experience for a long time that night. And I found out that I lacked flexibility in doing business. I just bargained aimlessly for my own interests without considering my "customers" The next day, I changed my strategy. I told myself to grasp the psychology of my "customers" and to be flexible on the price. When someone bargained heatedly with me for a long time, he must have great interest in my books. I began to decide a price which could be accepted by both him and me in my mind In addition, I would not offer a low price, for I knew that he wanted to buy books. My new strategy proved to be effective. My first book sold at a satisfying price. Other books were also sold out in the same way. It is said that businessmen can make money because they are cunning. But I think "being flexible" can better explain the mystery of successful businessmen. Of course, today I am not a successful businessman. But in the future, who knows?