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 GuinI know that nobody who hasn't been in battle or under attack can know what war is. But even in terms of being safe at home, it's also true that many Americans who think they know what being at war is, don't. Including, of course, George W. Bush and his people. They don't have a clue.
Ursula K. Le GuinVirginity is now a mere preamble or waiting room to be got out of as soon as possible; it is without significance.
Ursula K. Le Guinas a writer you are free. You are about the freest person that ever was. Your freedom is what you have bought with your solitude, your loneliness. You are in the country where you make up the rules, the laws. You are both dictator and obedient populace. It is a country nobody has ever explored before. It is up to you to make the maps, to build the cities. Nobody else in the world can do it, or ever could do it, or ever will be able to do it again.
Ursula K. Le GuinIf you deny any affinity with another person or kind of person, if you declare it to be wholly different from yourself - as men have done to women, and class has done to class, and nation has done to nation - you may hate it or deify it; but in either case you have denied its spiritual equality and its human reality. You have made it into a thing, to which the only possible relationship is a power relationship. And thus you have fatally impoverished your own reality.
Ursula K. Le Guin