Nick may say that he's one of the few honest people he knows, but we're not so sure about that. The Great Gatsby is built around lies, and why should this be any different? Human beings are inherently dishonest, whether they're male or female, born or made, poor or rich—and they're selfish, hypocritical, and destructive as well. And you may be able to fool your friends, but the eyes of God—or T. J. Eckleburg--are always watching.
In The Great Gatsby, Nick Carraway presents himself as the voice of reason and reliability, yet ultimately he proves to be an unreliable narrator.
Nick Carraway and Jay Gatsby are two sides of the same coin: each has built a successful façade to fool others, yet they can now no longer distinguish their true selves from the one they have created for the world.