“Ideas about men and women are often asserted. [F. Scott] Fitzgerald was to write about the way we learned things. Speaking of Josephine in “First Blood,” he restated ‘Dr. Jung’s theory that innumerable male voices argue in the subconscious of a woman and even speak through her lips.’”

From Fitzgerald, Hemingway, and the Twenties by Ronald Berman

Always in motion, Gatsby is intended to remind us of qualities praised not only by novelists but also by those who believed that in order to have a moral life one had first to have great energy, concentrated will, and high resolution. Against the language of this passage, we need to poise the language describing others. They are sensed through terms of indolence, inertia, withdrawal, and even paralysis.
Fitzgerald, Hemingway, and the Twenties by Ronald Berman