Jon: You still have it.
Arya: Needle.
Jon: Have you ever used it?
Arya: Once or twice.

Arya: You used to be taller.
Jon: How did you sneak up on me?
Arya: How did you survive a knife through the heart?
Jon: I didn't.

I used to think you were the cleverest man alive.

Sansa

Sansa: What do dragons eat, anyway?
Daenerys: Whatever they want.