It can also be found in her novel Mon Coeur dans une formule: C6 H8 (Az O3)6.
After meeting Pierre Teilhard in 1938 she converted to Catholicism and began to connect science, religion and psychoanalysis in her work.
Her most controversial work was Un mois chez les filles which literally means 'A month among the girls' however when it was published in 1961 in English in the United States the titled changed to Psychoanalysis of the Prostitute.
Choisy attempted to characterise sex workers as more human than in previous literature and avoided "moralising or...aestheticism".She received multiple awards in her lifetime including the National Order of Merit, a silver medal of Arts, Lettres, et Sciences, and the Lamennais Prize in 1967.