As a developing science, Marxist theories have been well adjusted to different times, largely because of the critic nature in the essense of the system. The essence of Marxism is embodied in its unity of critiques of practice and theory, as well as of itseof. Self*.criticism as an important quality of the system provides it with internal dynamics for adjustments and innovations. Constant Self*.critiques guarantee a theoretic system’s internal momentum toward perfection, preventing it from becoming rigid dogmas and leading it to new levels in introspective examinations. The developing of Marxism is embodied in its unity of critiques of practice and theory, as well as of itseof. Self * .criticism as an important quality of the system to it with internal dynamics for adjustments and innovations. Constant Self * .critiques guarantee a theoretic system’s internal momentum toward perfection, preventing it from becoming rigid dogmas and leading it to new levels in introspection examinations .