Given their different ideologies and personalities, one would not think Atticus considers himself to be similar to his sister, Alexandra. Atticus is portrayed as an understanding, sympathetic man who criticizes racism and is not afraid to follow his conscience. Unlike his sister, Atticus is not concerned about his family's background, whether Scout behaves like a tomboy, or if their neighbors agree with his representation of Tom Robinson. Aunt Alexandra is depicted as the complete opposite of her brother and does not agree with the way Atticus raises his children. Aunt Alexandra is primarily concerned with transforming Scout into a polite young lady and maintaining their family's upstanding reputation in Maycomb's community.
Aunt Alexandra is also racially prejudiced and significantly more judgmental than her brother. She believes Atticus is disgracing their family by representing Tom Robinson and argues with him over the idea of firing Calpurnia. Jem and Scout notice that they are always "fussing" and that Atticus has an irritated tone when speaking to his sister. Even when Atticus attempts to appease Alexandra, he is unable to follow through with teaching his children the importance of their family history. Atticus appears to get along much better with Jack than with his sister, and his constant arguments with Alexandra suggest that he does not consider himself to be similar to her.