Abstract: 1884 was a watershed year for Louis Dumur, who lived in Paris at the time in order to obtain his degree and keep his family at a distance. He received a letter from Hélène Brocher, which he immediately took to be a “sisterly admonition”, aimed at recalling him to the path of Protestantism. Their collected correspondence is thus the place where Dumur sets out and argues for his views on religiosity. We encounter these arguments again twenty-seven years later in École du dimanche.
