Russell's philosophy of happiness could be written from the following perspectives: From the perspective of personal happiness, Russell believed that personal happiness was the most basic goal in life. Personal happiness was closely related to the quality of personal life, social justice, economic development, and so on. He proposed the "happiness formula", which was "personal happiness = quality of life + social happiness + spiritual satisfaction". He believed that true happiness could only be achieved by balancing these three aspects. 2. The perspective of social happiness: Russell believed that social happiness was a necessary condition for personal happiness. Only by achieving social justice, economic development, cultural prosperity, etc. could social happiness be achieved. He proposed the "social formula", that is,"social happiness = quality of life + social happiness + spiritual satisfaction". He believed that social happiness and personal happiness were closely related and complemented each other. 3. The perspective of psychological happiness: Russell believed that psychological happiness was an important component of personal happiness. Only by paying attention to one's inner feelings could one achieve true happiness. He proposed a "psychological formula", that is,"psychological happiness = quality of life + social happiness + spiritual satisfaction". He believed that personal happiness was not only related to personal quality of life, but also closely related to social happiness and spiritual satisfaction. 4. The perspective of cultural happiness: Russell believes that cultural happiness is a necessary condition for personal happiness. Only by understanding and respecting different cultures can true happiness be achieved. He proposed a "cultural formula", which was "cultural happiness = personal understanding + social happiness + spiritual satisfaction". He believed that cultural happiness was closely related to personal happiness. Only by understanding, respecting and sharing different cultures could cultural happiness be realized.