Through Li Zhenglan's official career of more than thirty years, it shows the changes in China's political ecology since the reform and opening up. The article does not avoid struggle, but praises wisdom; it does not shy away from obsession, but ultimately it comes down to faith. It aims to reveal a core truth: true political wisdom does not lie in Machiavellian calculations, but in adhering to faith, loyalty to the people, grasp of laws and insight into human nature.