Tian Xingjian, a gentleman strives for self-improvement; The capacity of the earth is limited, so a gentleman must constantly cultivate his own virtue to undertake the world. This sentence comes from the Book of Changes.
There is also the motto of Kunming University of Science and Technology: Mingde is responsible, knowing and doing are one (Mingde comes from "university", "the way of university lies in Ming", and knowing and doing comes from "those who want sincerity, the prophet; Know in things ")
There is also the school motto of Dayun, "A hundred schools of thought contend for the benefit of the world."
Note: It was written entirely from memory, and the source of knowledge seems to be The Book of Rites? University, take a look.