Adequate Quote by Robert A. Heinlein

[Science fiction is] that class of prose narrative treating of a situation that could not arise in the world we know, but which is…

— Kingsley Amis

Science fiction is essentially a kind of fiction in which people learn more about how to live in the real world, visiting imaginary worlds…

— Brian Stableford

“Science fiction is the one literature that deals with today's reality - that provides a basis for discussion and understanding of the complex events…

— Biggle

The brightest minds in our field have been trying to find a definition of science fiction for these past seventy years. The short answer…

— Larry Niven

I define science fiction as fiction in which things happen that are not possible today - that depend, for instance, on advanced space travel,…

— Margaret Atwood

[Science fiction is] a specialized type of fantasy, in which the prime assumption usually is a new scientific discovery or invention.

— Jack Williamson

Science fiction rarely is about scientists doing real science, in its slowness, its vagueness, the sort of tedious quality of getting out there and…

— Kim Stanley Robinson

We are in a tech-heavy society, plunging headlong into an unknown future. Science fiction is what allows you to stand back and analyze the…

— J. Michael Straczynski

Science fiction is a great way to pretend you are writing about the future when in reality you are attacking the recent past and…

— Ray Bradbury

Sci-fi is often a metaphor. I think it's more the themes and questions that science fiction raises rather than the exact predictions that should…

— Peter Singer

Science fiction is the search for a definition of mankind and his status in the universe which will stand in our advanced but confused…

— Brian Aldiss

There is no such thing as science fiction, there is only science eventuality.

— Steven Spielberg