(1), the fundamental purpose of socialist construction is to liberate and develop productive forces and improve people's living standards, especially in backward countries. (2) To build socialism, we must proceed from our national conditions and independently explore the socialist construction mode with our own characteristics. Copying with other countries' models will eventually lead to failure. (3) Socialist countries must attach importance to the construction of the ruling party. Ideologically, we should advocate the style of proceeding from reality and seeking truth from facts, and organizationally, we should implement the principle of democratic centralism. (4) "Right" can destroy socialism, and "Left" can also destroy socialism. The direct cause of the drastic changes in the Soviet Union is right opportunism, that is, voluntarily giving up the leadership of the * * * production party. The experience of the Soviet Union tells us that criticizing "Left" dogmatism requires a historical perspective and a comprehensive analysis, rather than simply denying history. (5) Reform is the most effective way to maintain the vitality and vigor of the socialist system. Reform must be deeply rooted in China's national conditions, and the success or failure of reform must be centered on the development of productive forces, with economic growth, the enhancement of comprehensive national strength and the improvement of people's living standards as the yardstick. (6) The socialist society should be an open social system, which should be open not only internally but also externally. (7) Be alert to the "peaceful evolution" of socialism in western countries.