Delphine Antoine-Mahut is Professor in History of Modern Philosophy at ENS de Lyon (UMR 5317-IHRIM). Her research focuses on Descartes and his reception in nineteenth-century French philosophical historiography. Her latest book is on canon formation in French philosophy (Paris, 2021).Samuel Lézé is Associate Professor in Anthropology of Sciences at ENS de Lyon (UMR 5317-IHRIM). He has written articles on the relationship between French philosophers and doctors in the 19th century concerning the treatment of madness and the metaphysical problem of the causality of the Will.