The Four Great Masterpieces referred to 'Dream of the Red Chamber',' Journey to the West','Water Margins' and 'Romance of the Three Kingdoms'. They were all important works in the history of Chinese literature. They represented different cultural backgrounds and values, and also reflected the characteristics of different eras and societies. The theme of Dream of the Red Chamber was "love". Through the description of the life, marriage, love, and death of the four families of Jia, Shi, Wang, and Xue, it showed the ugliness and beauty of human nature and expressed its criticism of feudal society. The theme of Journey to the West was "Immortal Cultivation", which told the story of Sun Wukong and others who finally achieved the right result after going through 81 difficulties on the way to obtain the scriptures. This story emphasized the importance of personal effort and struggle, as well as faith and morality. The theme of Water Margins was "Righteousness". It told the story of a group of righteous thieves who rebelled in Liangshanpo. It expressed the discussion of justice and evil as well as the criticism of human weakness. The theme of Romance of the Three Kingdoms was "Loyalty". It told the story of various political struggles and wars during the Three Kingdoms period. It showed the theme of loyalty, trust and betrayal, and also reflected the dark side of society.