“Mal: Well, what about you, Shepherd? How come you're flying about with us brigands? I mean, shouldn't you be off bringing religiosity to the fuzzy-wuzzies or some such? Book: Oh, I got heathens aplenty right here. Mal: If I'm your mission, Shepherd, best give it up. You're welcome on my boat. God ai…”
— Tim Minear, Joss Whedon, Malcolm Reynolds, Nathan Fillion, imdb.com