Jamie: Roger? You must kill Stephen Bonnet. If I canna, you must do it. He's alive.
Roger: I know. Brianna heard you and Lord John talkin' at the wedding.
Jamie: There's a man, Philip Whaley, indebted to me, he's arranged for Bonnet to smuggle my whiskey. If Bonnet agrees to a meetin', Lord John can with the particulars.
Roger: I don't know if I could take another man's life, even one who has done what Bonnet has done.
Jamie: You must. If I canna do it, you must. Claire's told me your father, Jeremiah, fought in the second great war. He would've, too, if you'd been of age.
Roger: Ay, but that's different. When a man is standin' there before you, flesh and blood, with fear in his eyes.
Jamie: Bonnet stood before me once, and I saved him from his rightful fate at the gallows. He murdered my friend, attacked my wife, and Bree. He. If I hadna done that.
Roger: But you did. And it's done; you can't change it.
Jamie: Perhaps this is my penance, and unfortunately for you, the son must pay for the sins of the father. For my mistakes, you must do this.
Roger: It's a hell of a time to get philosophical.
Jamie: No time like the present. And you're a university professor, or so everyone keeps tellin' me.