How we cite our quotes: All quotations are from The King's Speech.
Quote #1
BERTIE: I don't care what woman you carry on with at night, as long as you show up for duty in the morning!
Bertie doesn't care what his brother does on his own time, but the dude is the King of England now and he needs to show up for work. He has a whole country depending on him now and he can't go on being irresponsible.
Quote #2
DAVID: A few hours ago I discharged my last duty as King and Emperor.
King Edward VIII doesn't last very long in his office. He doesn't even stick around a year before he leaves the throne of England to marry his love, Wallis Simpson. So much for family duty.
Quote #3
BERTIE: If I fail in my duty... David could come back. I've seen the placards: "Save Our King!" They don't mean me.
Bertie is convinced that no one wants him to be king because he can't speak well. But the truth is that most of the people around him are relieved that they won't have to live with his brother as king. After all, the dude was a lazy Nazi sympathizer. It's safe to say that, stutter or not, Bertie's a step up.