What philosophy does it violate to pick up sesame seeds and lose watermelon?

It violates the principle of dialectical relationship between principal contradiction and secondary contradiction, and fails to grasp the key points. To avoid this situation, we should focus on the principal contradiction without neglecting the secondary contradiction on the basis of clearly understanding the principal contradiction and the secondary contradiction, so as to achieve the unity of the two-point theory and the key theory.

Unclear division of primary and secondary contradictions can be avoided. At this stage, the primary and secondary contradictions are clearly divided and the main contradictions are concentrated.

This is a folk proverb, which means to catch the small and throw away the big one.

The same expression is used: see only the trees, but not the forest.

The story of breaking corn cob refers to changing your mind. One mountain looks at another, and there is nothing in the end.

There are differences in meaning.