First, the space-time angle:

Time perspective: history, reality, future and so on.

Spatial perspective: local, domestic, global, etc.

Second, the causal perspective.

Precedents cite phenomena and analyze the reasons.

Precedents cite phenomena to infer results.

Third, the positive and negative angles.

Right first, then wrong.

Reverse first, then correct.

Fourth, from the outside to the inside, from the shallow to the deep angle.

Analyze the phenomenon before revealing the essence.

First, analyze it from the familiar common sense, then from the philosophical point of view, and then from the aesthetic point of view.

Perception and rationality first, morality first, law second, material first, spirit first.

First others, then yourself, first ordinary people, then sages,

Analyze first, then summarize.