I would like to start this introduction to teacher ethics in China with a story. Years ago, when I was a second-year PhD student, I met one of my supervisor’s PhD graduates at a conference. I greeted him, saying, “Hi! I know you were Dr Law’s student. So am I!”. He responded with, “Yes, but that was many years ago”. As a Chinese person, I was shocked. In Chinese culture, one’s teacher for a day is one’s father for life.