[He looked into Katara's eyes as she spoke and nodded his head in resignation. At first he had thought he was in a world that he didn't need to help. It was becoming clear that rather, it was a world that he couldn't help. He nodded in resignation when Sokka said his piece.]

I understand.

[After Sokka pointed out the smithy, he heightened his pace to the door without appreciating the wacky sign.]