Without morality, no matter how strong and smart you are, you will only help others and do something harmful to society.

Without virtue, the country will not prosper, and without virtue, the people will not stand. Without moral power, a country cannot become a truly powerful country and a respected country. If a person has no moral ideal and lofty spiritual pursuit, his soul will have no refuge and become a slave of desire and a material cynic.

Academic theory:

His educational model is novel and eclectic, and he thinks that education is the foundation of a country's prosperity. Educational ideas are flexible and inclusive, not excluded by academic disputes, and widely absorb the strengths of various factions. "Educators, the cause of developing personality is also." He advocates that education should attach importance to students and oppose rigidity. He also advocated new educational ideas such as aesthetic education, health education and personality education.

Freedom of thought and inclusiveness:

Cai Yuanpei is generous and compassionate, and has a thorough observation of China society and bad habits; I visited Europe twice to personally study the scientific spirit after the Renaissance and the ideological trend after the French Revolution. He advocated civil rights and women's rights, freedom of thought, striving to get rid of the old habit of "reading as an official", advocating the atmosphere of scientific research, attaching importance to civic moral education, world outlook, outlook on life and aesthetic education.