What theme/themes does the author attempt to convey?
I think that Pride is the main theme of the story. Throughout this story, the narrator allows his pride to cloud his compassion and blind him to Doodle's limitations. He is too proud to accept having a disabled brother, and this is why he takes every measure he can to teach Doodle to do able-bodied things. Because of his pride, he does these things more with his own benefit in mind than his brother's. This story is a clear condemnation of blinding and debilitating pride, since the narrator's pride brings about the eventual death of Doodle.
Please submit each of your questions one at a time. Thanks!