Help with quote for To Kill a Mockingbird Who is speaking, who is the subject, what lessons are learned? Atticus - "If I didn't, I couldn't...

Atticus is the voice of reason in the novel; unwavering
reason. The majority of the town still harbors racist ideology passed on from previous
generations, they look at Atticus as a moral authority. Some characters are either
outright immoral or hypocriticalal. Some, like Tom Robinson and Atticus, provide moral
example whether the town likes it or not. Atticus says this (the passage you quote)
because he lives by example (a moral and just example); Someone else in the novel notes
that Atticus behaves the same way in court as he does in his home; he is consistent in
his life by example because it is the principle by which he lives which means he wants
to live up to his own standards, but also he wants to represent justice for the town and
his children. So, he must always act according to his conscience. Otherwise, he cannot
live with himself or