"They did not know that I did it for myself."this shows the theme because when you are prideful often you are very self centered and this quote shows that.
"That pride, who slave I was, spoke to me louder then all their voices."the brother was very prideful he knew it, and the tone and mood of this quote are sad, and
"Doodle walked only because I was ashamed of having a crippled brother" the brothers pride causes him to want people expect certain things, and when his brother did not follow that standard it upset him.
"I should have already admitted defeat, But my pride wouldn't let me." this shows how the brother was so prideful that even when sighs were saying that the brother needed to let up he couldn't because of how strong his pride was
"The knowledge that Doodles and my plans had come to a naught was bitter. " Brother was so caught up in his plan to perfectionate his brother, and when his brother was not able to complete it fully it diepointed his brother.