It takes ten years to cultivate trees and a hundred years to cultivate people. Guan Zhong’s famous saying comes from "Guan Zi Quan Xiu". The original text is: "A one-year plan is better than a valley of trees; a ten-year plan is better than trees; a hundred-year plan is better than trees." It's better to cultivate people." It means that the cultivation of personality is not something that happens overnight, it requires long-term accumulation and precipitation