Aang: Then we'll work together to fight Azula, and save Katara and Zuko.
Sokka: Whoa there. you lost me at "Zuko".
Iroh: I know how you must feel about my nephew. But believe me when i say there is good inside him.
Sokka: Good "inside" him isn't enough! Why don't you come back when it's outside him, too, okay?