People are inherently mortal, that is to say, people always die, but the meaning of death is different, and some are heavier than Mount Tai. Some are lighter than goose hair. This sentence comes from Sima Qian's "Report to Ren 'an" written in historical records.

"Bao Ren An Shu" wrote in the original text: "People are inherently mortal, or they are heavier than Mount Tai or lighter than a feather, and their uses are different. Too high, one does not insult the body, two does not insult the body, three does not insult the speech, two does not insult the body, two does not insult the clothes, three does not close the wooden rope, four does not insult Chu, two does not remove hair, five does not insult the baby, two does not destroy the skin, five does not insult the limbs, and the death penalty is extremely bad! "

The enlightenment of this sentence is: life is the most precious thing for people, and life is only once for everyone. In this case, you can't change the length of life, so try to change its value. Sooner or later, people will die, some people die worthily, and some people die meaningless, so he advocates that people die worthily and make contributions to the country and others. It also tells us that people should be determined to do meaningful things.

Mao Zedong once quoted this sentence in "Serving the People" to praise Zhang Side's sacrifice in serving the people, and death is heavier than Mount Tai, thus educating the cadres and soldiers in party member to learn Zhang Side's spirit of serving the people.