"to kill a mockingbird"
miss maudie discusses some of the town’s problems with the children. she says: “the things that happen to people we never really know. what happens in houses behind closed doors, what secrets—“ secrets seem to be a theme in the novel. even a small town holds many secrets. what are some of the secrets from the story thus far? how might the secrets affect the story?

Secrets are one of the central themes in the book, although they are not the most prominent theme, they are quite important, as the ending of the book relies heavily on an untrue fact and untrue story, or rather a secret, which determines the fate of one of the characters. This quote (above in your question) particularly mirrors the quote " You never really know a person until you consider things from his point of view...until you climb into his skin and walk around it." Boo Radley remains a secret from the beginning of the book until the end and this quote relates to him as Scout and Jem try to figure him out, since he is so mysterious, yet another one of the secrets present in the novel.