"No gold is pure, and no man is perfect" embodies the contradictory philosophical views.

The two contradictory parties are interdependent under certain conditions. The existence of one party is prerequisite for the existence of the other party. Both parties are in a unity. The two contradictory parties, according to certain conditions, will transform in their opposite directions.

The negation of the other by one of them, as well as the negation of the old contradiction in the transformation of the old contradiction into the new contradiction, is not a simple negation, but a dialectical negation, that is, there is something in the negation. Yes, there is negation in the affirmation.

For example, if there is no conflict between A and B, it will not be transformed into a weapon spear, but if there is a spear, there will inevitably be a shield. The contradictions constantly negate each other and promote each other's development. Now they have evolved. This creates a conflict between missiles and missile defense systems.

Extended information:

Harmony is a special form of contradiction, which reflects the interdependence, mutual promotion and common development of the two parties. Harmony does not mean contradiction. of absolute identity. Harmony is relative and conditional. Only when the two contradictory parties are in coordination and cooperation can things show a harmonious state.

The harmony of society and the harmony between man and nature are all achieved through the process of constantly resolving conflicts. Things are the unity of diversity, and the essence of harmony lies in coordinating the interrelationships of various factors within things and promoting the state that is most conducive to the development of things.