社会主义政治经济学应该有完整的、严密的科学体系。虽然各国各样的社会主义者都试图从马克思创立这门学说的体系和方法中得到启发,但由于受到历史进程的限制,目前还没能建立起科学的体系。理论的水平反映出生产力的发展水平和经济关系的成熟状况,正如恩格斯所说:“不成熟的理论,是和不成熟的资本主义生产状况、不成熟的阶 Socialist political economy should have a complete and rigorous scientific system. Although all kinds of socialists in various countries try to get inspiration from the system and method of Marx’s creation of this doctrine, due to the limitation of historical process, there is not yet a scientific system yet. The level of theory reflects the level of development of productive forces and the maturity of economic relations. As Engels said: "Immature theories are related to immature capitalist production conditions, immature orders