First of all, Mencius opposed the endless war between princes, and the sentence "Wang is belligerent, please use the metaphor of war" fully revealed this idea.
Secondly, Mencius believed that people should benefit from it and have the opportunity to recuperate. He believes that Liang's "intention" to the people is far from enough. This is just the difference between "100 steps" and "50 steps" and other countries' dissatisfaction with collecting money from the people.
Thirdly, Mencius showed Liang his ideal of governing the people, specifically, to let the people have a house of five acres, a field of one hundred acres and a dolphin of chickens and dogs.
Moreover, Mencius attached great importance to enlightenment and put forward the idea of "keeping order". His highest ideal is that CoCo Lee "eats meat with clothes and silk" and "is neither hungry nor cold".
Finally, Mencius further pointed out on the basis of his own argument that Liang, as the supreme ruler, has an unshirkable responsibility in the face of the social reality that the upper class is extravagant and wasteful and the people are hungry and cold.