When I was in high school, there was a teacher who taught me more than that in class. He was a very kind boy, 4 or 5 years older than us and taught us geography.
We all liked to take his class, though geography was not our major course. What impressed me a lot was his grace. You could see him always smiling. He got angry only when we were too noisy in r class,he often played soccer with us. He used to be a very believable defender and never fouled on any of us.
We all liked to call him "teacher miao" and he was just like a friend, not a sonsy personality inspired me to be kind to everyone I was my well-beloved "teacher miao".