To understand the incompleteness of Charles Péguy’s Dialogues de l’histoire, we need to analyze the titles of the texts under consideration, and to go back to the various titles Péguy successively assigned to the texts of a single work in progress, which he would later designate under an overall title. These titles refer to his two interlocutors, representing his two ways of thinking about history in a meta-dialogue. The project of a third dialogue, debated by the critics, takes shape – even the idea of eight additional ones – but the proliferation of titles comes to a halt with the encounter of one of the titles in the course of a development, that of the “carnal soul” which interrupts at once the composition of the work thus designated.