I was a very keen reader of science fiction, and during the time I was going to libraries, it was good, written by people who knew their science.
Terry PratchettFor an author, the nice characters aren't much fun. What you want are the screwed up characters. You know, the characters that are constantly wondering if what they are doing is the right thing, characters that are not only screwed up but are self-tapping screws. They're doing it for themselves.
Terry PratchettAnd then there were cats, thought Dog. He'd surprised the huge ginger cat from next door and had attempted to reduce it to cowering jelly by means of the usual glowing stare and deep-throated growl, which had always worked on the damned in the past. This time they had earned him a whack on the nose that had made his eyes water. Cats, Dog considered, were clearly a lot tougher than lost souls. He was looking forward to a further cat experiment, which he planned would consist of jumping around and yapping excitedly at it. It was a long shot, but it just might work.
Terry Pratchett