This work investigates the evolution and dissemination of intellectual currents in eighteenth-century France, specifically focusing on how philosophical ideas transitioned from elite circles to the broader public consciousness. Daniel Mornet, a distinguished scholar of French literature and history, utilizes a vast array of primary sources, including library catalogs, book sales records, and private correspondence, to map the intellectual landscape of the Enlightenment. He argues that the transformation of French thought was not merely the result of a few prominent thinkers, but a complex process of social and cultural diffusion that prepared the ideological ground for the French Revolution.

This text is regarded as a foundational study in the history of ideas, noted for its rigorous empirical approach to cultural history. The work provides a dense, scholarly examination of the mechanisms behind the Enlightenment, serving as an essential resource for researchers interested in the social history of French intellectual life.