Quotistic
A person whom is in the mood to make a quote.
Sarah was very quotistic today.
Quotist
One who is well renowned for his or her quotes.
Earl Nightingale is one of my favorite quotists!
Quotist
Someone who says or writes something that can be used as a quote.
Guy: "To be or not to be?"
Other Guy: Damn Shakespeare is such an overused quotist!
Other Guy: Damn Shakespeare is such an overused quotist!