Mrs. Dubose when she had Jem read to her to take her mind off of her withdrawals is one example. Another is when Boo Radley came out and killed Mr. Ewell to save Jem and Scouts' lives.
Atticus risks his social status to defend that black man in court. Jem is courageous when she befriends Boo (sort of), while everyone else in the town is frightened from him. Boo stands up to his...
to show how discimination was back then and how respect builds from the beginning of the book to the end. pay close attention to the spelling of the "N" word.