Zheng Zuihu means:

The success of kings lies in convincing people with virtue, the success of rulers lies in improving diplomatic relations, and the success of fighting lies in using tactics.

The way to be a king: people who win the world boast that they have mastered and dominated everything in the world.

Politicians cut off contact: people who manage state affairs boast that they are very good at establishing contact and communication.

Soldiers make plans: people who fight and engage in military affairs boast that they know how to plan and plan.