I define science fiction as the art of the possible. Fantasy is the art of the impossible.
Ray BradburyEvery time you take a step, even when you don't want to. . . . When it hurts, when it means you rub chins with death, or even if it means dying, that's good. Anything that moves ahead, wins. No chess game was ever won by the player who sat for a lifetime thinking over his next move.
Ray BradburyAsk no guarantees, ask for no security, there never was such an animal. And if there was it would be related to the great sloth which hangs upside down in a tree all day every day, sleeping its life away.
Ray Bradbury