Fitzgerald's Tender is the Night exposes the conflict between ideas and morality and the problems that result when a person's actions are driven solely by intellect. The three main characters in the novel personify three American views of knowledge. The themes these characters portray ultimately show that ideas of action cannot be separated from moral issues.
Stevens, A. Wilber
"Fitzgerald's Tender Is the Night: The Idea as Morality,"
BYU Studies Quarterly: Vol. 3
, Article 9.
Available at: http://scholarsarchive.byu.edu/byusq/vol3/iss3/9