The American Dream, money, and mortality are among the central themes of The Great Gatsby. His despair and death marked the end of the false American Dream. Fitzgerald contrasts between old and new money (Tom and Daisy). He also highlights the difference between life in Chicago and life in New York City. Fitzgerald believed that money could never bring happiness. Instead, it was human relationships that made us happy or not. This is what he called the "American Dream". He argued that because of the huge gap between rich and poor in America, some people were able to buy happiness and others were not. Thus, the idea of the American Dream came about - something that every citizen has the chance to achieve. However, this ideal was only true for a few people. The rest of us had to make do with what we had instead. This is why he called his novel "The Great Gatsby": everyone wanted to be included in this dream but only a few could actually enjoy it. In conclusion, The Great Gatsby is about how difficult it is to reach for your dreams and hard work cannot guarantee you success. Sometimes, you need more than just money to feel happy.