As we know, a noun is a person, place or thing..
and an adjective is a word that describes a noun
Gatsby is desperately searching for someone who knows Daisy. When he finds out from Jordan Baker that Nick Carraway is Daisy cousin, Gatsby latches on to him in an effort to get Daisy back. Everything he does is for Daisy.
A, he really emphasizes his point by repeating that same phrase several times in his speech and uses that to get it across to the people listening
Re-thinking the topic
hope this help and please inform me if I was right