Arya Stark is the younger daughter of Catelyn and Ned Stark.  She's much happier with a sword in hand than being a lady like her sister, Sansa.

Arya Stark Quotes

Syrio: What do we say to the God of death.
Arya: Not today.
Syrio: Go.

My father is Hand of the King. I am not a boy, I am Arya Stark of Winterfell. And if you lay a hand on me my father will have both of your heads on spikes. Now, are you going to let me by, or do I have to smack you on the ear to help you with your hearing?

Arya

Game of Thrones Quotes

Tyrion: Let me give you some advice bastard. Never forget what you are. The rest of the world will not. Wear it like armor, and it can never be used to hurt you.
Jon: What the hell do you know about being a bastard?
Tyrion: All dwarfs are bastards in their father's eyes.

Tis a big and beautiful world. Most of us live and die in the same corner where we were born and never get to see any of it. I don't want to be most of us.

Oberyn