Nick Carraway is one of the main characters in the book. He narrates the story in both third and first person, as well being an observer and participating in the book. Nick judges people about their behaviours and actions. He tells the reader through out the story about Gatsby's dream of longing for Daisy, the American dream and about Gatsby's huge parties.
F. Scott Fitzgerald uses Nick throughout the book as a character to tell his story or opinion of the American dream that has been corrupted by the desire for materialism. The American dream being based on the assumption that each person, no matter what his origins, could succeed in their chosen sphere of endeavour on the sole basis of his or her own skill and effort. Particularly, the American dream could be seen as wealth creation for any individual. Migrants from all over the world have had the American dream.
Nick tells Fitzgerald's story by participating in conversations and observing peoples behaviours towards dreaming and their wealth. Gatsby comes in to his riches by bootlegging, only because of his dream, his true American dream, Daisy.
The wealth Tom has inherited causes him to become arrogant and condescending towards others while losing his morals.
Daisy seems to float around, empty and lifeless without a goal in life. But Daisy does have a dream, although a simple one, she hopes her daughter will be a fool ".that's the best thing a girl can be in this world a beautiful little fool.” If Daisy messes anything up she and her husband cower away behind their money.
The book starts when Nick recalls some advice his father told him in his "younger and more vulnerable years”. "Whenever you feel like criticizing anyone.Just remember, that all the people in this world haven't had the advantages that you have had.” This is advising Nick not to make judgements on people and accept them for who they are and what they do. Nick then states: "In consequence I'm inclined to reserve all judgements” but this is a very false statement as he tells the story through his own biased eyes and judges and expresses his opinions on everybody.