The so-called sincerity, the original meaning is naive, pure and meticulous. There is an explanation in Li Xiaozhou's Note: "Honest people are not very clear." Integrity is the foundation of integrity, and no integrity is not integrity. Now people usually understand "honesty" as not harming the interests of others, collectives and countries, and not seeking things that do not belong to them; The so-called self-discipline, that is, self-restraint, self-control, not indulging one's own desires and behaviors, is a non-mandatory conscious behavior. The former is a kind of ethics, while the latter is a kind of accomplishment and ability. They are mutually conditional, mutually causal and mutually complementary, and jointly promote people's moral perfection.