"three strictness and three realities". "Three strictness and three realities" means strict self-cultivation, strict use of power, strict self-discipline, seeking truth from facts, doing things for the people, taking the public as the public and taking the private as the private. This core content aims to guide leading cadres in party member to be honest, diligent and pragmatic, pay attention to the fundamental interests of the people, and promote the building of a clean and honest party style and the fight against corruption. By practicing "three strictness and three realities", leading cadres in party member constantly strengthen their self-cultivation, enhance their sense of self-restraint, improve their working ability and better serve the people.