“Everyone is destined to die, which may be heavier than Mount Tai or lighter than a feather.” This sentence was said by Sima Qian. The meaning of this sentence is that people always have to die, but the meaning of some people's death is heavier than Mount Tai, and the meaning of some people's death is lighter than the feathers of a swan goose. It is generally used to describe a person's life achievements.

This famous saying comes from a letter written by Sima Qian to his friend in prison, titled "A Letter to Ren An". Because Ren An's cousin was Shaoqing, it is also called "A Letter to Ren An". .

In the article, Sima Qian described his misfortunes with extreme anger, expressed the infinite pain in his heart, boldly exposed the moodiness and willfulness of Emperor Wu of the Han Dynasty, and put forward the idea that "everyone is destined to die, or to be reborn". "Mount Tai, or lighter than a feather" view of life and death.

And showed his tenacity and unyielding fighting spirit in order to realize his valuable ideals and endure humiliation. Sincere feelings, fluent language, and strong artistic appeal. It is of great value for understanding the author's life and thoughts.