The Four Great Classics referred to the four classic works of Chinese classical novels, including Dream of the Red Chamber, Journey to the West, Water Margins, and Romance of the Three Kingdoms. These four works all had profound cultural implications and unique artistic styles, and were widely regarded as an important part of Chinese culture. The theme of 'Dream of the Red Chamber' was " The rise and fall of a person are uncertain." It emphasized the unpredictability and fickleness of life's fate. At the same time, it also discussed social classes, family ethics, love and marriage. The theme of Journey to the West was "Cultivation, Taoism, Helping the World and Saving the People". It narrated the story of Tang Sanzang and his disciples who went to the West to learn Buddhist scriptures. By telling the story of their hardships and finally obtaining the true scriptures, it showed people's pursuit of truth and faith, and also explored human nature, morality, philosophy and other issues. The theme of Water Margins was " heroic spirit." It told the story of a group of heroes fighting against oppression and righteousness. It showed heroism and the people's standpoint, and also explored social reality, human nature, morality and other issues. The theme of Romance of the Three Kingdoms was " Loyalty, Righteousness, Power Struggle ". It narrated the historical story of the Three Kingdoms period. It showed the importance of loyalty, integrity, and power struggle by telling the struggles and wars between various forces. At the same time, it also discussed human nature, morality, history, and other issues. The central ideas of the four masterpieces cover many different topics and elements, but they all reflect the style and values of ancient Chinese society, which have a profound impact on the inheritance and development of Chinese culture.