Introduction to the school motto monument of CUHK: Mr. Sun Yat-sen has placed high expectations on Guangdong University. In 1924, he personally wrote the school motto for Guangdong University: "Erudition, Inquiry, Careful Thinking, Clear Discrimination, and Dedicated Practice." The original text of the Precepts of the Cross comes from the Confucian classic "Rites and the Doctrine of the Mean". Sun Yat-sen was in the era of the great democratic revolution. In order to meet the needs of the revolution, he attached great importance to education and cultivated a generation of talents who could revitalize China and rebuild civilization. The Precepts of the Cross were his inheritance of traditional education forms and the revolutionary new educational principles and policies of the times. content. It can be said to be a milestone in modern ideological innovation.