I can't write an essay for you, however, I can offer you some tips :)
The quote above was said by Ralph Waldo Emerson, an essayist. To me, the quote means that a person's past and future has a small impact on who the person becomes. Often times, somebody's personality does not rely on his/her past or future, but in what the person believes in.
“[Her children’s] absence was a sort of relief, though she did not admit this, even to herself. It seemed to free her of a responsibility which she had blindly assumed and for which Fate had not fitted her.”
Miss Maudie is brave and optimistic. Townspeople from all over come out to help. - Jem and Scout, standing near the Radley house, experience Boo Radley's version of "help" when he wraps a blanket around a shivering Scout without her even noticing.