According to a different source, this question refers to the text "Village Schools and Traveling Soldiers" by Arthur Henderson Smith.
In this text, we learn about the traditional system of education that existed in China during the late 19th century. The author tells us that education is extremely important, but requires the absolute dedication of a student. Therefore, most of the time only one child in the family is able to receive it. If we took the example of twin brothers, we would see that their lives are quite different. While one is always studying, with no physical exercise or training on any practical matter, the other one would be working in the fields, being "wild" and learning a trade.
I would say that the system of education where I live resembles that of the first twin. Students are expected to attend lots of classes and gain a lot of knowledge constantly. Moreover, most students spend more time studying and reading than working in the fields or being active.
