"I think living things are not necessary in this world, right?" My sister said this to me in the world a long time ago.
"Even if there is no life, the world is still moving. The only people who think life is beautiful are those who have it. Isn't it too presumptuous to regard yourself as an essential part of this world?"
"You are very conceited when you say such things, aren't you?" I wanted to retort.
"Yes. After all, I am also a member of living things."
Then she smiled and disappeared from my sight forever.