We all repeat quotes from various genre sources. Some become part of the zeitgeist, others are so obscure that nobody knows we’re doing it.
What are your favorite or most oft-quoted speculative fiction lines? Movies, television, novels, short stories, filk songs, RPGs; it’s all fair game, so …?
“He’s got an arm off!” (SHAUN OF THE DEAD) and pretty much any line from BIG TROUBLE IN LITTLE CHINA, most especially “Son of a bitch must pay.”