“That was a long time ago, but it’s wrong what they say about the past, I’ve learned, about how you can bury it. Because the past claws its way out. Looking back now, I realize I have been peeking into that deserted alley for the last twenty-six years.”
These words are written by the main character in "The Kite Runner", Amir. The "deserted alley" that is mentioned in this quote, is symbolizing the alley where Amir watched and did not take action to stop Hassan's rape.
The guilt that Amir carries with his for not helping or taking a stand to help Hassan, stays with him for a life time. No act of redemption is large enough to mask the guilt that he feels from that day. No matter how hard he tries to forget about the rape, it always manages to come back and haunt him.
"Children aren't coloring books. You don't get to fill them with your favorite colors."
This quote explains the relationship between Baba, and Amir. As Amir is growing up, he is portrayed as a weak, scared and timid young boy who will not fight nor stick up for himself or the people closest to him. Baba resents this and wishes deeply that Amir would be stronger, just as he is. The "colors" represent the personality traits that a child portrays. No one has control of this or can determine what kind of person a child will be, or what "colors" they are given.