“It was my duty to... Oh, hell. Of course, duty had nothing to do with it. I just wanted to get back at her and this was the only way that presented itself.”

“HELMER: But this is disgraceful. Is this the way you neglect your most sacred duties?NORA: What do you consider is my most sacred duty?HELMER: Do I have to tell you that? Isn't it your duty to your husband and children?NORA: I have another duty, just as sacred.HELMER: You can't have. What duty do you mean?NORA: My duty to myself.”

“They always seemed to know everything, but now there is only me, and it seems I know nothing, not even my duty. How can I do my duty if I do not know where it lies?" - Catelyn”

“The old women only stuck around this long out of a sense of duty. Your mom was the same way. That's why I loved her. She put her duty first, ahead of evverything.”

“The duty of planning tomorrow's work is today's duty; though its material is borrowed from the future, the duty, like all duties, is in the Present.”

“Just last year i wanted to kill him, but now it is my duty to save him.”