1. The view of unity of opposites: This view holds that contradiction is the unity of opposites within things, and both sides of contradiction are both opposite and unified, which promotes the movement, change and development of things. This view emphasizes the important role of contradictions in the development of things.

2. Principle of universality of contradiction: This view holds that contradiction exists in the development process of everything, and everything is contradictory and sometimes contradictory. This principle requires us to admit contradictions, analyze contradictions, dare to expose contradictions, and actively seek the correct methods to solve contradictions at any time and in any matter.

3. Principle of contradiction particularity: This view holds that different things have different contradictions, the same thing has different contradictions in different processes and development stages, and different contradictions of the same thing and two different aspects of the same contradiction also have their own particularities. This principle requires us to analyze specific problems.

4. Dialectical relationship between universality and particularity of contradiction: this view holds that universality and particularity of contradiction are interrelated, universality lies in particularity and is manifested through particularity, and there is no universality without particularity. This view requires us to analyze the particularity of contradiction under the guidance of the principle of universality of contradiction.

5. Principle of principal contradiction and secondary contradiction: This view holds that the imbalance of contradiction development is the objective basis of principal contradiction and secondary contradiction, defines the principal contradiction and secondary contradiction, explains the methodological significance of finding out the principal contradiction and secondary contradiction, and discusses the basis and conditions for the mutual transformation between the opposing sides of contradiction.

6. Identity and struggle in all aspects of contradiction and their relationship: This view holds that the opposing things are both antagonistic and unified, and the opposing sides of contradiction have both struggle and identity, which restrict and transform each other. This view emphasizes the relationship between contradictory parties under certain conditions.

The above viewpoints constitute the basic content of the theory of contradiction and provide an important philosophical basis for us to analyze and solve practical problems.