Chapter 19 of The Doctrine of the Mean says: "Be knowledgeable, interrogate, think carefully, distinguish clearly and stick to it." This is about several levels of learning, or several progressive stages. "erudition" means that in order to learn, we must first search widely and cultivate rich and exuberant curiosity. Without curiosity, the desire to learn disappears and erudition becomes impossible. "Bo" also means broad and inclusive. Only by being broad and inclusive can we be inclusive, learn with a world vision and an open mind, and truly be "tolerant and generous", and then "love the masses and be kind to others". So erudition can be the first stage of learning. After this stage, learning is a rootless tree and passive water. "Interrogation" is the second stage. If you don't know anything, you should ask questions to the end and doubt what you have learned. After asking questions, you should carefully examine and analyze them through your own ideological activities, otherwise what you have learned will not be used for yourself, but for "careful thinking." "Demonstration" is the fourth stage. Learning is becoming clearer and clearer. If you don't argue, the so-called "erudition" will be mixed, and it is difficult to distinguish between true and false. "Pursuit" is the last stage of learning, that is, since you have learned something, you must work hard to implement what you have learned, so that you can finally implement what you have learned and achieve "unity of knowledge and action". "Dedication" means loyalty, firmness, singleness and perseverance. Only people with clear goals and firm will can truly "persevere". Taking "erudition and perseverance" as the school motto is not just taking the words "erudition" and "perseverance", but the internal unity, connection and interaction process from "erudition" to "perseverance" including "interrogation, careful thinking and discernment". Civil affairs people should be "old and old, and people are old; We are still young, we are still young. It is our responsibility to "be a family in the world". Unless we have extraordinary skills, we can't shoulder this heavy responsibility. Only by taking "being knowledgeable and persevering" as the way of learning can we learn something, achieve something and make use of it, and "loving the people and being kind" will not become a slogan and become a mere formality.