Through poetry and action.
His famous poems: The old man Fufeng in "The Turtle is Longevity" has ambitions for thousands of miles, and the martyr is still ambitious in his twilight years; as well as the "Dan Ge Xing Zhong", the Duke of Zhou spits out food, and the world returns to its heart. showed his ambition.
In his whole life, he held the emperor hostage and ordered the princes. He never proclaimed himself emperor, but wanted to be the Duke of Zhou.