Confucius: the founder of Confucianism, advocating benevolent government, worshiping rites of the week, setting up private schools, traveling and giving lectures, and educating ancestors.

Zhang Zhongjing: Treatise on Febrile Diseases, a systematic theory of traditional Chinese medicine.

Sun Simiao: Qian Jinfang, the medical king, integrated Taoism and Confucianism into medical skills, fully expounded medical ethics, and first advocated the establishment of gynecology and pediatrics.

It is suggested to know the life stories of several characters and understand them in depth.