Historically, Confucius was called a "saint" and Mencius was called a "sub-saint". The second saint is second only to the most holy. Saint Amethyst said, "At the beginning of life, human nature is good. The first sentence is Mencius' and the second sentence is Confucius', which shows that "Yasheng" has far-reaching influence. In order to prove that "human nature is good", Mencius told us a story. When a child fell into a well, everyone had "compassion". Mencius believed that the "benevolence, righteousness, propriety and wisdom" advocated by Confucius is not a social norm imposed on us by the outside world, but comes from the inherent moral source in our hearts-this is "humanity". In this sense, Mencius was the first philosopher who advocated the theory of human nature in the history of China. Since "beginning of life's nature is good", why is there a situation of "ritual collapse and bad music"? Mencius believes that this is because people do not know how to cherish their own nature and do not know how to preserve their kindness. What saddens him even more is that people know how to look for livestock such as chickens and dogs, and they have lost their kind nature, but they have no feeling of loss. Therefore, if Confucius regards "restoring the rites and laws" as his lifelong career, then Mencius regards "restoring human nature" as his lifelong mission. In Mencius' view, as long as people find their true nature, restore their nature, and restore their conscience, they can almost achieve a sense of security and old age; The life realm of "I am young, and people are young" (Mencius Hui Liang Wang Shang) can far achieve "ruling the world in the palm of your hand with unbearable heart and unbearable politics" (Mencius Gong Sun Chou Shang). Mencius' philosophical proposition stems from the theory of "good nature", which pays more attention to individual spiritual cultivation, but lacks social practice steps to bring peace and stability to the country. Therefore, in front of King Hui of Liang, he can only say, "Why is your king profitable? There is also righteousness. " Source: Middle School Students' World (version B)