(The spelling Rémy de Gourmont is incorrect, although very common and used by Ezra Pound in translations of his work.)
In 1881, de Gourmont was employed by the Bibliothèque Nationale. He began to write for general circulation periodicals such as Le Monde and Le Contemporain. He took an interest in ancient literature, following the footsteps of Gustave Kahn. During this period, he also met Berthe Courrière, model and heir of the sculptor Auguste Clésinger, which whom he struck a lifelong attachment. The two lived together for the rest of their lives.
De Gourmont also began a literary alliance with Joris-Karl Huysmans, to whom he dedicated his prose work le Latin mystique ("Mystical Latin"). In 1889 de Gourmont became one of the founders of the Mercure de France. In 1891 he published a political polemic called Le Joujou Patriotisme ("Patriotism - a toy") which argued that France and Germany shared an aesthetic culture and urged a rapprochement between the two countries, contrary to the wishes of nationalists in the French government. The fallout from this political essay led to his losing his job at the Bibliothèque Nationale, in despite of Octave Mirbeau's chronicles.
During this same period, de Gourmont was stricken with the disease lupus vulgaris. Disfigured by this illness, he largely retired from public view, appearing only at the offices of the Mercure de France. In 1910, de Gourmont met Natalie Clifford Barney, to whom he dedicated his Lettres à l'Amazone ("Letters to the Amazon").
However, de Gourmont's health continued to decline during this period, and he began to suffer from locomotor ataxia and be increasingly unable to walk. He was deeply depressed by the outbreak of World War I as well, and died of cerebral congestion in 1915. Berthe Courrière was his sole heir; she inherited a substantial body of unpublished work from him, which she sent to his brother Jean de Gourmont; she died within a year of his death. De Gourmont is buried in Père-Lachaise.