What are the four scholars proposed by Tang?

What are the four scholars proposed by Tang?

There is a "Honesty Supermarket" in the campus of Xishan High School in Jiangsu Province.

No cashier, no camera. Students can put coins in the exit after buying daily necessities, and then find their own money in the change box next to them.

This is true for opening an "honest supermarket", and so is running education. Tang, who was out of the circle at this year's National People's Congress, promoted the teaching concept of "four people"-a good education should be to cultivate lifelong athletes, responsible people, problem solvers and elegant lives. What he wants is to "achieve" his ideal step by step in this direction.