“…6 Marie disfavored the Dejerine couple, as both were Vulpian's students, had no neurological training at the Salpêtrière, and Marie opposed the ideas on aphasia localization that the Dejerines defended. [1][2][3]5,6,10,14,[16][17][18] In addition to professional rivalries, there is unproven evidence that antagonism of social classes played a role in this schism, since Pierre Marie was from the French bourgeoisie, upper middle class, married to a woman from a wealthy family, while Dejerine was related to modest peasants from Switzerland. 3,5,6,11,14,15 After her expulsion, Madame Dejerine-Klumpke was aided by her friend Maurice Letulle (1853-1929), Pierre Marie's successor to the chair of pathological anatomy, who stored her collection in his department.…”