"Mencius" is one of the classic works of ancient Confucianism in China, known as one of the "Four Books", compiled by Mencius and his disciples in the Warring States period. The book is divided into seven chapters and mainly elaborates on the core concepts of Confucianism and ethical morals, such as benevolence, justice, ritual, and loyalty. "Mencius" emphasizes that human nature is inherently good, and believes that many good virtues are innate in human nature. These virtues only need to be discovered through education and cultivation to enable people to live a good life. Mencius emphasizes the importance of the four virtues of benevolence, righteousness, ritual, and wisdom, believing that they are the key to building a harmonious society. At the same time, "Mencius" also explores the moral principles of interpersonal relationships such as ruler and minister, father and son, and brothers, advocating traditional Confucian values such as loyalty and filial piety. "Mencius" has an extremely important position in the history of Chinese culture, not only having a profound influence on ancient Chinese society but also having a wide-ranging impact on traditional Chinese culture and modern society. This classic is regarded as an important part of Confucianism and Chinese culture, and its wisdom and values are still widely inherited and applied today.