从1847年马克思和恩格斯在《共产党宣言》中第一次完整阐述科学社会主义到现在,社会主义的理论与实践已经历了由空想到科学、社会主义在经济相对落后的国家首先建立,通过改革开放完善和发展社会主义三次飞跃。当前,在我国建设有中国特色的社会主义的历史时刻,研究怎样坚持社会 From 1847, when Marx and Engels completed the first complete explanation of scientific socialism in the “Communist Manifesto” up till now, the theory and practice of socialism have undergone a change from imagination to science and socialism in a relatively backward economy. Through reform Three leaps in opening up, perfection and development of socialism. At present, at the historic moment of building socialism with Chinese characteristics in our country, we must study how to uphold socialism