How we cite our quotes: (Chapter.Narrator.Paragraph)
Quote #4
Fate drives me south and south again, Catelyn thought as she sipped the astringent tea, when it is north I should be going, north to home. She had written to Bran and Rickon, that last night at Riverrun. I do not forget you, my sweet ones, you must believe that. It is only that your brother needs me more. (23.Catelyn.21)
Catelyn's duty is to family, but in this novel, that duty is pulling her in a bunch of directions at once. On the one hand, she wants to see Sansa and Arya rescued, but on the other, she wants to be with Bran and Rickon during this difficult time. And on the third hand, she wants to be with her father when he dies. And that's a lot of hands.
Quote #5
"Why should men fight and die for you?"
"I am their lawful prince," Theon said stiffly.
"By the laws of the green lands, you might be. But we make our own laws here, or have you forgotten?" (25.Theon.174-176)
Theon believes an ironborn's duty is to serve him because he is thinking about duty in the Winterfell sense—but on the Iron Islands, you have to earn the right for people to die for you.
Quote #6
"I have no quarrel with Renly, should he prove dutiful. I am his elder, and his king. I want only what is mine by rights. Renly owes me loyalty and obedience. I mean to have it. From him, and from these other lords." (32.Catelyn.28)
Actually, Stannis kind of has the right of it—according to Seven Kingdoms tradition, the younger brother does have a duty to the older brother. But Renly's argument is that Stannis would make an awful king. So isn't Renly's duty really to the realm and not his brother? Again, different obligations compete with each other.