Lao Ren and His Children

There is a class teacher who dotes on children in Xuefu Middle School - Ren Zhengdao "Ren Zhengdao never takes the right path." "Old Ren, you will really be an old man in a dozen years." "Teacher Ren! I wish you success all over the world" "No need, it's already all over the world." "Ren Zhengdao! You are really the right person in the world!"