The four masterpieces are the classics in the history of Chinese literature, including Dream of the Red Chamber, Journey to the West, Water Margins and Romance of the Three Kingdoms. They contain rich cultural and philosophical thoughts and are widely regarded as the pinnacle of ancient Chinese literature. The main theme of Dream of the Red Chamber was " The Life of Riches and Clouds ". Through describing the life stories of Jia Baoyu, Lin Daiyu, Xue Baochai and other characters, it showed the greed, vanity, hypocrisy, kindness and other aspects of human nature. At the same time, it also discussed the problems of family, society, politics and other aspects. The theme of Journey to the West was "Courage, Wisdom, and Faith". It told the story of the adventures of Sun Wukong, Zhu Bajie, and Monk Sand who protected the Tang Monk to the West. It contained the values of courage, wisdom, and faith. At the same time, it also described many fantasy plots such as Wuzhuang Temple, Flaming Mountain, and White Bone Spirit. The theme of Water Margins was "Righteousness, Love, and Righteousness". It told the story of 108 Liangshan heroes who rebelled against the ruling class. It contained values such as righteousness, love, and integrity. At the same time, it also showed the dark side of human nature such as violence, hatred, and greed. The theme of Romance of the Three Kingdoms was " Loyalty, Loyalty, Heroism ". It narrated the stories of various political struggles and wars during the Three Kingdoms period. It contained values such as loyalty, loyalty, heroism, etc. At the same time, it also showed the weaknesses and defects of human nature such as power, desire, betrayal, etc. The central ideas of the four masterpieces cover many aspects, including human nature, family, society, politics, history and other aspects. They have high cultural significance and philosophical value.