Answer:
One of the reasons Miss Maudie gives is the fact that Atticus made the people think about the issue for longer than anyone had before. She thinks this is a good sign and a step towards the future, even if it is just a "baby step."
Atticus, on the other hand, has a more concrete source of hope. After being devastated with the outcome of the trial, he tells Jem that hope should not be lost yet, as there is a chance that the case can be appealed in a higher court.
Explanation:
