[Zuko pauses in thought. There was some truth to what this guy says, but he's got the feeling that Wan is definitely being harder on himself than he needs to be. But he's not exactly one to talk here.]

I think you're giving me too much credit.

[He then shakes his head.]

There has to be something you can do. You can't bring back the people who died, and I can't undo all the wrongs of the Fire Nation. But I plan to atone for them, and you can do the same thing.