According to a 1990 article published by The Daily Californian, the average time required for a student attending U.C. Berkeley's College of Engineering to earn his or her PhD degree is 5.9 years. In September of 1987, I enrolled in U.C. Berkeley to earn my PhD, which I did three years later in October 1990. To complete this book, however, I needed over a decade. Immediately following graduation from junior high in China, I was sent to the fields as a peasant due to the Cultural Revolution, where I spent the next ten years of my life planting, growing, and harvesting crops. As I toiled in the countryside, I taught myself China's high school curriculum, as well as university-level mathematics and English, developing my self-studying ability. After the Cultural Revolution, and passing the National College Entrance Exam, I was enrolled in college. As I earned my bachelor's from Shandong Mining Institute, my master's from China Mining Institute and Technology, and my PhD from U.C. Berkeley, I mastered the ability to think logically and became proficient with scientific research methods. This gave me the foundation necessary to complete "Debate of Light and Dark." Throughout the ten years I spent working on "Debate of Light and Dark," I neglected enjoying life and would endure many sleepless nights in solitude, brainstorming with myself. It felt as if I simply would not be able to enjoy myself until the book was completed, as it was always in the back of my mind regardless of where I was or what I was doing. Though I learned to embrace the loneliness that accompanied this project, in fact, I really enjoy laughing with friends. My hobbies include: reading, writing, swimming, playing ping pong, playing go, playing the bamboo flute and tree leaves. Published Works - In 2005, I published "Who Should Talk about Cosmos," a book from which one section, titled "Distance Mystique," was incorporated into the Chinese university national textbook. - The essays "Hold American Dream" and "Gordian Title" both won World Daily Journal literary prizes and were included in the Chinese anthologies Finding Dreams in North America and Studying in the US - Our Stories. - In 1988, I published "Computer Simulation of Management Operations Research" in Chinese. - In 1989, I co-published with a teacher the textbook Simulation Technique in Chinese.