U.S. Marshal Samuel Gerard (Tommy Lee Jones) replies - with his own gun pointed at him - that he doesn't care that Dr. Richard Kimble claims he's innocent of killing his wife. A defining scene in a very good movie.
Deputy Marshal Samuel Gerard: Newman, what are you doing? Newman: I'm thinking. Deputy Marshal Samuel Gerard: Well, think me up a cup of coffee and a chocolate doughnut with some of those little sprinkles on top, just as long as you're thinking.