What are some quotes on how Gatsby was ignorant to reality?

The Carraways are something of a clan, and we have a tradition that we’re descended from the Dukes of Buccleuch, but the actual founder of my line was my grandfather’s brother, who came here in fifty-one, sent a substitute to the Civil War, and started the wholesale hardware business that my father carries on to-day. (1.5)

"Gatsby bought that house so that Daisy would be just across the bay." Then it had not been merely the stars to which he had aspired on that June night. He came alive to me, delivered suddenly from the womb of his purposeless splendor. (4.147-151)