"Is it so far from madness to wisdom?" - Daenerys Targaryen - George R. R. Martin

Craster is his own man. He has sworn us no vows. Nor is he subject to our laws. Your heart is noble, Jon, but learn a lesson here. We cannot set the world to rights. That is not our purpose. The Night’s Watch has other wars to fight.

You esteem this Penrose more than you do my lords bannermen. Why?”
“He keeps faith.”
“A misplaced faith in a dead usurper.”
“Yes,” Davos admitted, “but still, he keeps faith.”
“As those behind us do not?”
Davos had come too far with Stannis to play coy now. “Last year they were Robert’s men. A moon ago they were Renly’s. This morning they are yours. Whose will they be on the morrow?”
And Stannis laughed. A sudden gust, rough and full of scorn. “I told you, Melisandre,” he said to the red woman, “my Onion Knight tells me the truth.”
“I see you know him well, Your Grace,” the red woman said.
“Davos, I have missed you sorely,” the king said. “Aye, I have a tail of traitors, your nose does not deceive you. My lords bannermen are inconstant even in their treasons. I need them, but you should know how it sickens me to pardon such as these when I have punished better men for lesser crimes. You have every right to reproach me, Ser Davos.”
“You reproach yourself more than I ever could, Your Grace. You must have these great lords to win your throne — ”
“Fingers and all, it seems.” Stannis smiled grimly.

"Your Grace," he said, when he and Cersei were alone, "I was wondering. Are you drunk, or merely stupid?"