Science fiction - and the correct shortcut is 'sf' - uses actual scientific facts or theories for the source ideas or framework of the story. It has some scientific content, however speculative. If it breaks a law of physics, it knows it's doing so and follows up the consequences. If it invents a society of aliens, it does so with some respect for and knowledge of the social sciences and what you might call social probabilities. And some of it is literarily self-aware enough to treat its metaphors as metaphors.
Ursula K. Le GuinIt's a rare gift, to know where you need to be, before you've been to all the places you don't need to be.
Ursula K. Le GuinThe one thing a writer has to have is a pencil and some paper. That's enough, so long as she knows that she and she alone is in charge of that pencil, and responsible, she and she alone, for what it writes on that paper.
Ursula K. Le GuinLove doesn't just sit there, like a stone; it has to be made, like bread, remade all the time, made new.
Ursula K. Le GuinThe misogyny that shapes every aspect of our civilization is the institutionalized form of male fear and hatred of what they have denied and therefore cannot know, cannot share: that wild country, the being of women.
Ursula K. Le GuinScience fiction properly conceived, like all serious fiction, however funny, is a way of trying to describe what is in fact going on, what people actually do and feel, how people relate to everything else in this vast sack, this belly of the universe, this womb of things to be and tomb of things that were, this unending story.
Ursula K. Le Guin