There is a famous saying in ancient times, there is Yan Ruyu in the book, and there is a golden house in the book. But also, the ancients said that nothing is a scholar, so this idea of the ancients should be related to the historical background and political and economic conditions.
First of all, China has been in a very developed farming economy for a long time. Most people in China are farmers, and for farmers, the strong labor force at home is the most important. It is difficult for a rural family to cultivate political talents.
therefore, for the ancients, reading was not as good as farming. It's useless to be a scholar. What I may say is that although these scholars are excellent at reading, they can't turn this knowledge into food in a short time. Then, for men who need to support their families, reading is useless.
It is a scholar to say that everything is useless. Another reason is that many scholars are stubborn and will not be able to achieve mastery. Because we all know that it takes a certain process to turn knowledge into practice, there are many theoretical things, although learned, but it is difficult to achieve the ideal effect when used in practice, so the ancients said that nothing is a scholar, perhaps satirizing those who stick to textbooks and can't use them flexibly.
In fact, the most important function of reading is to make your life better through reading. Therefore, you should not only learn to read, but also practice, otherwise reading will be useless. And many people in ancient times didn't seem to understand this truth.
Therefore, although they talk nonsense, it doesn't seem to have much effect on real life. Although they read a lot of books, they can't feed and clothe their families, and it seems that ancient scholars have become synonymous with the poor.