Connecting with the text, give an example to illustrate your understanding of the sentence "People are inherently mortal or heavier than Mount Tai or lighter than a feather"

People are inherently mortal, either heavier than Mount Tai or lighter than a feather. This sentence comes from Sima Qian's Historical Records. Mount Tai refers to important and valuable things, and a feather refers to trivial things. This sentence means that people always die, but some people die for the people, which is valuable and meaningful, and some people die for themselves, which is meaningful. He praised those selfless and upright people. People who are not afraid of sacrifice satirize those who do whatever it takes for their own interests, reminding them that they should not be afraid of sacrifice. On the contrary, they satirize those who do whatever it takes for their own interests and remind the younger generation that they should establish a correct outlook on life and values and be useful people. Instead of, doing nothing, eating and dying.