All in the beginning... 

One morning, on my daily walk, a car stopped alongside me and the woman driver asked,

"Can you do me a favor?"

"Yes, what is it?" I replied

"Please tie my son's tie (领带)," she asked. "It's his first day at school. I'm a single mother and I don't know how to do it."

The boy got out of the car, and we all stood on the street corner, teaching and learning tie knotting.