This one's from the Good, the Bad, and the Ugly. Everyone one here should know it well. "You see, in this world there's two kinds of people, my friend... those with loaded guns, and those who dig. You dig." When said by a young Clint Eastwood, it was fuckin' badass.
Here's another one from the Man With No Name, in response to Tuco: "You may run the risks, my friend, but I do the cutting. We cut down my percentage - uh, cigar? - liable to interfere with my aim."