Fantasy is escapism, but wait... Why is this wrong? What are you escaping from, and where are you escaping to? Is the story opening windows or slamming doors? The British author G.K. Chesterton summarized the role of fantasy very well. He said its purpose was to take the everyday, commonplace world and lift it up and turn it around and show it to us from a different perspective, so that once again we see it for the first time and realize how marvelous it is. Fantasy - the ability to envisage the world in many different ways - is one of the skills that make us human.
Terry PratchettIt cannot be said often enough that science fiction as a genre is incredibly educational - and I'm speaking the written science fiction, not 'Star Trek.' Science fiction writers tend to fill their books if they're clever with little bits of interesting stuff and real stuff.
Terry PratchettYou can't build a plot out of jokes. You need tragic relief. And you need to let people know that when a lot of frightened people are running around with edged weaponry, there are deaths. Stupid deaths, usually. I'm not writing 'The A-Team' - if there's a fight going on, people will get hurt. Not letting this happen would be a betrayal.
Terry Pratchett