What is the fine-grained topic of the following text: In this novel, which takes place in the 1920&apos;s, we see that the major themes incorporated into it are hope in the American Dream, the idea that rich are always entitled and never responsible for their behavior, and that the common man will keep trying. Only return the topic.
Themes in a 1920's novel: American Dream, entitlement of the rich, perseverance of the common man