On June 20, the tenth year of Hongwu (1377), Zhu Yuanzhang ordered his ministers to punish the Crown Prince from now on, and later heard about it. He said to the Crown Prince, "People rule the world and there are many opportunities every day. If you get something, the world will benefit from it; If one thing goes wrong, the whole world will suffer. Since ancient times, the king of entrepreneurship has been working hard, getting in touch with human feelings and focusing on physics. So when doing things, there are few mistakes. A king who keeps his promise will become rich. If he is not proficient on weekdays, it will be difficult to avoid mistakes in politics. Therefore, I specially order you to listen to the notices from various departments every day in order to practice national politics. Remember, benevolent people are not rash, wise people are not confused by evil, diligent people are not addicted to ease, and decisiveness is not constrained by grammar. It's all based on the weight of a heart. I have never enjoyed leisure since I was alive, for fear that I would do something wrong and be entrusted by God. Wear a star and sleep at night. You saw these things yourself. If you can do it physically, it will be a blessing to the world. " At the same time, Confucian scholars told the Crown Prince about the "extension of university".