" There is only one realm in which characters defy natural laws and remain the same—the realm of bad writing. And its the fixed nature of the characters which makes the writing bad. If a character in a short story, novel, or play occupies the same position at the end as the one he did at the beginning, that story, novel, or play is bad. "

― Lajos Egri , The Art of Dramatic Writing: Its Basis in the Creative Interpretation of Human Motives