The literature of the emperor penguin is as forbidding, as inaccessible, as the frozen heart of Antarctica itself. Its beauties may be unearthly, but they are not for us.
Ursula K. Le GuinGreat artists make the roads; good teachers and good companions can point them out. But there ain't no free rides, baby. No hitchhiking. And if you want to strike out in any new direction — you go alone. With a machete in your hand and the fear of God in your heart.
Ursula K. Le GuinSci-fi uses the images that sf - starting with H.G. Wells - made familiar: space travel, aliens, galactic wars and federations, time machines, et cetera, taking them literally, not caring if they are possible or even plausible. It has no interest in or relation to real science or technology. It's fantasy in space suits. Spectacle. Wizards with lasers. Kids with ray guns. I've written both, but I have to say I respect science fiction enough that I wince when people call it sci-fi.
Ursula K. Le Guin