To the exploration of the depths of the human soul practiced by his eldest, Robert, younger brother of Marcel, born two years after him, in 1873, preferred that ... of prostates and bladders! Robert will become in the thirties, "The" great French specialist in urology. As a surgeon, in 1901 he participated in the first perineal prostate ablation ever performed in France. A great doctor then! But it is also to his hard work that we owe the publication, among others, of Albertine disappeared and "Temps Retrouvé" after Marcel's death in 1922.