French Pascal's famous saying: "Man is just a reed grass, the most fragile thing in nature, but he is a thinking reed grass." Although people are as fragile as reeds floating in the wind and may be destroyed by the storms of nature at any time, people are reeds of thinking, which distinguishes them from other animals and plants and proves their unique existence because of thinking. Descartes once said, "I think, therefore I am", and thinking is the proof of human existence. This is Pascal's original intention. Now some people emphasize the fragility of human beings like reeds in the wind in front of nature from another angle, so as to educate people to respect and protect nature and protect their own lives.