Studying the relationship between man and nature is the pursuit of understanding the relationship between man and nature. The relationship between heaven and man is the relationship between heaven and man. "Connecting the preceding with the following" is the track of understanding historical development and change. "Talking about home" means writing your own unique opinions.

Sima Qian himself said that in the Ren 'an Report, Sima Qian said that the purpose of writing Historical Records was to "understand the changes of ancient and modern times and become a family statement when studying the relationship between heaven and man". Although I evaluate myself, this sentence has been unanimously recognized by future generations.