The quote means that Atticus is a great man who stands behind what he says and does, behaving the same in public as he does in his home. Unlike him, the others are two-faced, for example, publicly attacking Tom Robinson, while believing in the comfort of their homes that he might be innocent.
1. “Don't judge a man until you've walked two moons in his moccasins.” This is the primary lesson of the novel.
2. Sal is struggling with the death of her mother. She encounters many people with their own struggles.
What do you mean? are we supposed to have read that book or is that something else?