Avatar: The Last Airbender, Book 2: Earth

Zuko:
(looking at the tied-up Appa) Uncle?

Iroh:
(walks into the cell) So, the Blue Spirit? I wonder who could be behind that mask?

Zuko:
What are you doing here?

Iroh:
I was just about to ask you the same thing. What do you plan to do now that you've found the Avatar's bison? Keep it locked in our new apartment? Should I go put on a pot of tea for him?!

Zuko:
First I have to get it out of here.

Iroh:
And then what?! You never think these things through! This is exactly what happened when you captured the Avatar at the North Pole! You had him, and then you had nowhere to go!

Zuko:
I would've figured something out.

Iroh:
No! If his friends hadn't found you, you would have frozen to death!

Zuko:
(very angry) I know my own destiny, Uncle.

Iroh:
Is it your own destiny, or is it a destiny someone else has tried to force on you?

Zuko:
Stop it, Uncle! I have to do this!

Iroh:
I'm begging you, Prince Zuko! Its time for you to look inward and begin asking yourself the big questions: Who are you? and What do you want?