ABSTRACT Like other philosophical traditions, what we call French spiritualism is a complicated constellation of thinkers who developed partially divergent answers to shared themes or concerns. In order to avoid easy generalizations and artificial labels, this article aims to explore the many-voiced character of this tradition by focusing on a debate on the notion of ‘liberté morale’ that took place in 1903 at the Société française de philosophie. Given the number and the calibre of the participants, as well as the (...) centrality of the discussed notion, this episode sets the perfect stage for an in-situ assessment of the inner fault lines underlying any superficial unity in the French spiritualist tradition. (shrink)