I think the first story I ever read of his was The Sound of Thunder, and I remember reading The Martian Chronicles for a library challenge. His stories always made you sit down and think. I had to write down one line from Fahrenheit 451: "We're nothing more than dust jackets for books, of no significance otherwise."

"You need me. You wouldn't be much of a hero without a villain. And you do love being the hero, don't you. The cheering children, the swooning women, you love it so much, it's made you my most reliable accomplice." -- Lex Luthor to Superman, Question Authority, Justice League Unlimited