Probably the best quote concerning Jem's changing attitude about Boo Radley comes in the final lines of Chapter 23. Jem and Scout have been discussing the different social classes in Maycomb: Jem believes there are at least four groups, while Scout decides that there is "just one kind of folks. Folks." Jem responds that he used to believe that, too, when he was younger, but wondered why all of the people can't just "get along with each other?" It was then that Jem had a revelation:
"I think I'm beginning to understand why Boo Radley's stayed shut up in the house all this time... it's because he wants to stay inside." (Chapter 23)
Both of the children joke about their past fears concerning Boo and the Radley House on their walk to the school on Halloween night. Scout knows that "Boo doesn't mean anybody any harm," and Jem agrees, but he "teased" her anyway.
"That yard's a mighty long place for girls to cross at night... Aren't you scared of haints?"
We laughed. Haints, Hot Steams, incantations, secret signs, had vanished with our years as mist with sunrise. (Chapter 28)