Hal Clement

“You can create any sort of a universe you want, but you must be consistent to the rules you've laid down.”

“The difference between science and magic is that science is supposed to make sense.”

“We want a story that works, and that means we must have a setting that works.”

“An alien is not just a human being in a funny suit.”

“The rules of the universe are not meant to be broken; they're meant to be understood.”

“I write what is called 'hard' science fiction. I try to make my stories as scientifically accurate as possible.”