"Standing at twenty, not confused at thirty" comes from The Analects of Confucius. The complete sentence is: "Five out of ten, I am determined to learn, standing at thirty, not confused at forty, knowing my destiny at fifty, listening at sixty, and acting at seventy, without overstepping the bounds."

When I was fifteen, I became interested in learning. At the age of thirty, I can do things independently. At the age of forty, I can not be confused by external things. At the age of fifty, I can know what human resources can't control. Sixty years old, I can listen to different opinions. At the age of seventy, I can do what I like without overstepping the bounds.

The content of Politics includes 24 chapters. This paper mainly deals with Confucius' thought of "ruling by virtue", the basic principles of how to seek and be an official in politics, the relationship between study and thinking, the process of Confucius' own study and cultivation, the review of past learning methods, and the further elaboration of filial piety and other moral categories.