Doc actually curses in this episode.
Matt: (to Ivers) I'm gonna tell you somethin'. You try leading us into a trap, I don't care what else happens, you're gonna get the first bullet.
Doc Adams: .....opium is most certainly not the answer.
Dr. Rhodes: Each of us has his own way of dealing with his failure. The brave one puts a pistol to his head, and as I say, I am a coward. This [opium] makes failure totally unimportant.
Coltraine: It was too late for all of us to go back a long time ago, Colonel.
Shindrow: Anyway, we'd both be certain to be recognized. We haven't exactly been saints since the end of the war. The Yankees have a long memory.
Doc: "What this country needs is a 65 minute hour just for women."