Confucius once made an on-the-spot investigation in Pu county, where his disciple Zilu was governing. As soon as he entered Pu county, Confucius praised on his governance for three times. Another disciple Zigong asked, "How do you know that before you see his political performance?" Confucius said, "As soon as I entered the county, I saw green crops and vegetables, people operating in the fields, and many people digging deep ditches. It could be seen that Zilu had made a lot of efforts to organize people in production. He was able to do so because he has prestige among the people. When I entered the city, I saw that the people lived in solid houses in neat order. And when I entered the government office, I saw that all his subordinates obeyed orders and respected him very much. Therefore, I'm pretty sure that he has done a great job in governing the county."