Shield exists in all things, in the whole development process of all things. The old contradictions have been solved and new ones have emerged. Things always move in contradiction. Contradictions are universal, but the contradictions of different things are specific and special.

The particularity of contradiction refers to the contradiction in the movement of specific things, and each aspect of contradiction has its own characteristics.

Extended data

Modern German philosopher G.W.F Hegel summed up the scientific achievements at that time on the basis of objective idealism in the form of speculative philosophy, systematically expounded the theory that contradiction is inherent in everything itself, and implemented it in his own logical system. Marxist philosophical criticism inherited the thought of universality of contradiction in previous philosophy, and scientifically expounded the principle of universality of contradiction for the first time.

The practice of human society and the history of all scientific development prove that all forms of movement contain contradictions, everything is the unity of opposites, and contradictions are the commonness of everything. There is a contradictory movement in the development process of everything from beginning to end, and the existence of contradiction is universal and absolute. The contradiction between ideas and concepts is a reflection of the universal contradiction in the objective world.

People's understanding of things is to understand the contradictions of things, and scientific understanding lies in studying the internal contradictions of objective things. If we deny contradictions, there can be no real scientific understanding. Adhering to the principle of universality of contradiction and observing all problems from the viewpoint of unity of opposites is the basic premise of all scientific understanding and one of the fundamental requirements of materialist dialectics.