In Big Trouble In Little China there's quite a few good ones, but my favorites are:
Jack Burton: When some wild-eyed, eight-foot-tall maniac grabs your neck, taps the back of your favorite head up against the barroom wall, and he looks you crooked in the eye and he asks you if ya paid your dues, you just stare that big sucker right back in the eye, and you remember what ol' Jack Burton always says at a time like that: "Have ya paid your dues, Jack?" "Yessir, the check is in the mail."
Jack Burton: Like I told my last wife, I says, "Honey, I never drive faster than I can see. Besides that, it's all in the reflexes."
Jack Burton: Okay. You people sit tight, hold the fort and keep the home fires burning. And if we're not back by dawn... call the president.
Jack Burton: All I know is, this Lo Pan character comes out of thin air in the middle of a goddamn alley while his buddies are flying around on wires cutting everybody to shreds, and he just stands there waiting for me to drive my truck straight through him with *light* coming out of his mouth!
Jack Burton: You can go off and rule the universe from beyond the grave.
Lo Pan: Indeed!
Jack Burton: Or check into a psycho ward, which ever comes first, huh?