Authors Theodore Dreiser writing often portrays characters whose strength lies not in their moral code or ethics, but instead in their absolute persistence as they are confronted by all obstacles; their unwillingness to yield.
Theodore Dreiser's greatest novel was An American Tragedy (1925). The book was based on the Chester Gillette and Grace Brown murder case. One critic pointed out that the novel is a "story of a man struggling against social, economic, and environmental forces - as well as forces within himself - that slowly drown him in a tide of misfortune." It has been argued that the novel was an example of naturalism, an extreme form of realism.