Miss Chang is my Chinese teacher in high school. She looks very normal except that she is very beautiful inside. Most important of all, she is a very humble person. She is just a walking library who has so much stored knowledge of Chinese literature that you wonder how one brain could hold that much knowledge. She has written 13 books on various writers including Lao She, Lu Xun and others. She has appeared on TV programs and even was the guest of a TV show in England while she was visiting there. Her English is spectacular, and she could even probably teach just that if he wanted to. However she never shows off his knowledge, even though she can. 

In addition, she is sincere and patient with her students. She is also very demanding and clear when she speaks, and her concern is not so much with your grades but your effort. The effect she had on the students is very powerful. Essentially she opened up the minds of her students to the world of knowledge.