A Close Second:.
Ask ten different scientists about the environment, population control, genetics – and you’ll get ten different answers. But there’s one thing every scientist on the planet agrees on: whether it happens in a hundred years, or a thousand years, or a million years, eventually our sun will grow cold, and go out. When that happens, it won’t just take us, it’ll take Marilyn Monroe, and Lao-tsu, Einstein, Maruputo, Buddy Holly, Aristophanes – all of this. All of this was for nothing, unless we go to the stars. — Babylon5