Same, no difference. The statement of unity is relatively common.

The identity of contradiction refers to a trend and connection between contradictory opposites that are interdependent, attracted and connected with each other. It has two meanings:

(1) Contradiction The existence and development of one side of the contradiction must be based on the existence and development of the other side. The key word here is "dependence", that is, the two are prerequisites for each other. Common famous sayings in exams include: "Existence and non-existence complement each other, difficulty and ease complement each other, long and short complement each other, superior and inferior complement each other, sounds and voices harmonize each other, and front and rear complement each other." "Sui" etc., these all reflect the mutual dependence of the two contradictory parties.

(2) The interpenetration between contradictory opposites is manifested in the mutual penetration, mutual inclusion and mutual transformation of the contradictory parties. The key word here is "transformation". If good is transformed into bad, there must be a process of transformation;

Common famous sayings in exams include: "He who is good at swimming drowns, and he who is good at riding falls." , "Chaos arises from governance, timidity arises from courage", "A blessing in disguise is a blessing in disguise", "Extreme happiness breeds sorrow", "Extreme happiness breeds sorrow", "Extreme happiness breeds sorrow", etc. These all reflect the mutual transformation of the two contradictory parties. Extended information

Explained by Marx's philosophical theory: Materialist dialectics believes that everything in the world contains two aspects, which are both opposite and unified with each other. (Contradiction is the unity of opposites). The opposite attribute of contradiction is struggle, and the unified attribute of contradiction is identity. They are two basic opposite and complementary attributes inherent in contradiction.

Methodology: The contradictory viewpoint requires us to look at the problem from a bifurcated viewpoint and a comprehensive viewpoint. Adhere to the two-point theory and the two-point theory.

Baidu Encyclopedia-Unity of Contradictions