This topic examines Confucius' educational thought. Starting with the discussion of human nature, Confucius thought that there was little difference in human innate nature, and the differences in personality were mainly formed after birth. Therefore, he attaches great importance to the acquired education, advocates "teaching without distinction" and hopes to cultivate people into "saints" and "gentlemen". Confucius vigorously set up private schools and trained a large number of talents. In addition, Confucius advocated the teaching attitude of teaching students in accordance with their aptitude, convincing, not ashamed to ask questions, practicing, combining learning with thinking, learning old and new teaching methods, learning without tire, and teaching without tire.

Option A, regarding the role of education, Confucius believes that education plays a role in national stability and social development, and puts forward the view of "being constant, being rich and teaching", and holds that population, wealth and education are the three elements of building a country; Put forward the philosophical proposition of "similar in sex, far in learning", and emphasize the influence of acquired environment on human development.

Option B, regarding the purpose of education, Confucius devoted himself to cultivating a group of "scholars" and "gentlemen", with perfecting personality as the primary purpose of education. Confucius put forward to cultivate politicians with both ability and political integrity from ordinary people, that is, "learning to be excellent is to be an official."

Option c, about the educational content, the Analects of Confucius? "Shu Er" records: "Zi teaches four things: writing, action, loyalty and faith." "Wen" refers to cultural knowledge, including "Six Classics" (poetry, calligraphy, ceremony, music, Yi, Spring and Autumn Period). Behavior, loyalty and belief are the requirements of moral code of conduct. In the whole education of Confucius, moral education occupies the primary position. Confucius' teaching content emphasizes social personnel and literature, and despises technology and productive labor.

Option D, regarding teaching principles and methods, Confucius advocates the principles of teaching students in accordance with their aptitude, inspiring and inducing, combining learning with thinking, unifying knowledge and practice, comprehensively educating and consolidating. "Tibet and interest complement each other" comes from Xueji. Therefore, rule out.

AB in the stem of the question is Confucius' thought, which accords with the meaning of the question. In option C, poetry, calligraphy, ceremony, music, Yi, Spring and Autumn are six classics, not six arts. D option "Tibet and interest complement each other" comes from Xueji. Therefore, rule out.

So choose the AB option in this question.