Because Lu Zhi studied hard since he was a child, devoted himself to research and achieved excellent results. Moreover, the emperor liked him very much because of his personality and took special care of him. Lu Zhi himself was very grateful to the emperor for his care and work for him.
And Lu Zhi's incorruptibility was cultivated since childhood, because his childhood education made him not go against his heart. At that time, due to the premature death of Lu Zhi's father, his family had fallen into poverty, and there was not much money for him to study. But Lu Zhi's fame at that time was already known to many people, so many people were willing to continue to fund his studies. But Lu Zhi did not accept it. On the contrary, he studied hard, worked while reading, and finally did learn something.
When Lu Zhi was an official, the emperor visited his house and found that his house was surrounded by four walls. Even the emperor couldn't stand it. He was taught not to be too straight but to be flexible. Because at this time, Lu Zhi's official has become bigger and bigger, and more and more people are paying attention to him in the DPRK, so the emperor also wants him to change himself. However, Lu Zhi refused the emperor very decisively. He was very grateful to the emperor for his promotion, but the conduct he developed since childhood made him unable to accept such behavior. But the emperor has been dissatisfied with him because of this matter, because even honest officials should be flexible and know how to advance and retreat, but Lu Zhi still spoke out. Finally, the emperor couldn't bear to send him to a remote area to be an official, and finally Lu Zhi died on the road.