Mrs. Dubose is referring to Atticus' defense of Tom Robinson. Her declaration that he was going against his raising directly relates to Simon Finch, and the fact he was a slaveowner. The fact that Atticus followed his own heart, values, and sense of morality was a good thing.
it means your topic do reseach on it . then find one real news story about that topic . then wright one - two paragraphs describe what your topics about .thats what it mean