Give examples to explain why people can't go against the way of nature.

A child found a pupa on the grass and took it home. After a few days, the pupa cracked a crack, and the butterfly inside struggled for hours and didn't come out. Children can't bear to watch, so they cut the pupa with scissors to help the butterfly shed its pupa. The butterfly that can come out is bloated and flat, and it can't fly at all. He died soon.