First of all, Cao Can should learn from the advantages of its predecessors and change with their changes. After years of war, the people need to recuperate. This is Huang Lao's skill, which Hanwu mentioned before. Don't compete with the people for profits, let the people recuperate, and don't easily change the national policy to restore the country's vitality. This is the best way to govern. If it is always changing, it will only be the people who suffer. So many policies created by predecessors are naturally summed up by many experiences, so this is the best way not to change.
Second, understand the disadvantages and contradictions of the Han Dynasty at that time. At that time, the Han Dynasty almost reached the point where people were in poverty. Due to the vigorous development of the country before, regardless of people's lives, people's lives are difficult and they need a lot of time to recuperate. The principles and policies formulated by former Prime Minister Xiao He before this are very suitable for recuperation. I don't need to toss about, I just need to follow them. This is the genius of Cao Can as my Prime Minister.
Third, Cao Can looks stupid, but he is smart. Cao Can is well aware of the gap between himself and the former Prime Minister. He can be well aware of his position, and will not change his policy rashly, nor will he be arrogant.
In his view, what predecessors summed up is the best, and Zhuangzi's inaction is the best proof. In fact, he doesn't really only know drinking and eating meat. He knows in his heart what people really need and what people really want. This is the greatest cleverness. Cao Can was praised for a reason, and learning to use it is the greatest wisdom.