This means that there is no class difference in education, and everyone can receive education regardless of wealth, dignity, good and evil, wisdom and stupidity.

teach students in accordance with their aptitude

It means that teachers should proceed from the students' actual situation and individual differences, and carry out differentiated teaching in a targeted manner, so that each student can develop their strengths and avoid their weaknesses and get the best development.

In the Analects of Confucius, Ziyou asked about filial piety, and Xia Zi asked about filial piety. Zhu's Collection of Notes quoted Song as saying: "Ziyou can be honorable or disrespectful, but it can be more or less gentle, and each is different because of its material."

Example: teachers should pay attention to the differences between students in all aspects, so that ~.