In the excerpt from Jane Austen's novel, 'Pride and Prejudice', Elizabeth Bennet expresses her strong opinion about social class and marriage. She believes that personal happiness should take precedence over societal expectations. Elizabeth's character challenges the norms of her time, as she refuses to settle for a marriage based solely on wealth. She states, 'It is not my style to hate others for their social standing.'
Based on this excerpt, what key idea does Elizabeth Bennet convey about marriage?