A spoken quote hat describes the personality of Calpurnia. From chapters 1-8.

Calpurnia is one of the children's moral instructors. She's feisty, but she loves them all.

“Hush your mouth! Don’t matter who they are, anybody sets foot in this house’s yo‘ comp’ny, and don’t you let me catch you remarkin’ on their ways like you was so high and mighty! Yo‘ folks might be better’n the Cunninghams but it don’t count for nothin’ the way you’re disgracin‘ ’em—if you can’t act fit to eat at the table you can just set here and eat in the kitchen!”