"Mostly, though, I dream of good things. [...] I dream that my son will grow up to be a good person, a free person, and an important person. I dream that lawla flowers will bloom in the streets of Kabul again and rubab music will play in the samovar houses and kites will fly in the skies. And I dream that someday you will return to Kabul to revisit the land of our childhood."
"For you, a thousand times over." The first time the line's said is sweet in itself, though what happens after that makes it very ironic, but when Amir and Sohrab are kite fighting and they manage to take one of them down. Amir immediately runs after the kite to catch it for Sohrab, telling him, "For you, a thousand times over."
In the movie, when Baba and Amir are fleeing Kabul, Amir is a little boy instead of an 18-year-old. Baba knows that Amir is afraid and strokes his forehead and comforts him. Keep in mind that this is a man who previously treated his son with aloof detachment.