My teachers wrote this textbook by themselves when I was a senior student in my Chinese university. This showed their hardworking and research results, which I appreciated. When I immigrated to the USA I still brought them because they are invaluable and I can't find them in the book stores or online. When I meet some technical problems in my professional jobs, I will still open and consult the books. I am familiar with the content of the books. They were oil-printed like an old version. Every time I touched the book, it's as if I returned to the old university life of my youth. There is some fragrant odor of the paper and oil in it. I respect the devoted teachers. This book give me the power and confidence in my life. This makes me think what important things I should do and how my education is meaningful in my memories.
– Jin Wang