Abstract: The article describes how the Jansenists, victims of the Roman Inquisition, were also the sharpest critics and the most influential accusers of the philosophers of the Enlightenment, both among the congregations of the Index and the Holy Office as well as among the Parliament of Paris or even the Châtelet. For the first time ever, they did invent the idea of the “philosophers’ conspiracy”, which would become a really influential paradigm reading.
