I got a new job in Catholic University in Washington. a good chance, I was offered a new flat to live in. One summer vacation, going to the park, I had not been outside my flat, doing an experiment about a disease. The results of the experiment were to me and they would the success of my research. It is really difficult without enough evidence. I felt quite . I even doubted that the experiment would . Gradually, I was not about it. After all, too much hard work and too little rest illness. One night, I went out to a lecture by a famous philosopher. Inspired by him, I went back to continue the experiment and eventually got the result. How happy I was! The next day, I proudly that the disease was .