He was a professor. At the age of 90, he still worked eight hours every day regardless 1 the weather. His secretary said: “He was extremely old, but he forced himself to walk from his living place to the office through two blocks. 2 would take him an hour to do so, but he insisted because it made him get a sense of 3 (succeed).” One day, a university student 4 (step) out of his office with a pile of books. He complained: “He always answers my questions with just a yes or no. However, he always gives me dozens of books and suggests me 5 (find) the answer on my own.” By chance, the professor knew 6 the student complained about. He explained to him with a smile: “This is the method I have learnt---the 7 (hard) you work independently, the better solutions you will find. If you can make full use of the books, you will 8 (probable) become a good lawyer in the future.” This 90-year-old man was Pound, 9 was the president of Law College of Harvard. He believed “all slopes ( 斜坡 ) are easy 10 (go)”, of which he often reminded his students.