坚持党要管党、从严治党,永葆党的先进性和纯洁性,不断增强党的创造力、凝聚力、战斗力,是摆在全党面前的重大课题。正在深入开展的党的群众路线教育实践活动,为加强和改进党的建设积累了宝贵经验。习近平同志在党的群众路线教育实践活动第一批总结暨第二批部署会议上的讲话,将这些宝贵经验概况为五个必须: It is a major issue for the entire party to uphold that the party control the party, strictly administer the party, keep the advanced nature and purity of the party forever and continuously enhance its creativity, cohesion and combat effectiveness. The in-depth education and practice activities of the mass line of the party are gaining valuable experience in strengthening and improving party building. Comrade Xi Jinping summarized the first batch of the party’s mass line education practice activities and the second batch of deployment speeches and outlined these valuable experiences as five necessities: