The Crypto-Dualism of Henricus Regius

The current literature on Henricus Regius mainly focuses on his connections with the relevant context of the Utrecht crisis, on his relations with Descartes, on his views in medicine and natural philosophy, as well as on his notion of human being. Being these a weighty source of the analysis of Regius’s thought, I will focus on a still overlooked topic: namely, the logical and metaphysical arguments employed by Regius with regards to dualism. In fact, in the light of such arguments one can ascertain that his positions present some inconsistencies to be explained through the dualistic assumptions underlying his metaphysics, making his positions more close to Descartes’s than it appears at first glance. Accordingly, my aim is to demonstrate that Regius’s metaphysics was ultimately dualistic, as he refused to accept the materialist entailments of his positions. Such ascertainment is to be provided, actually, by means of an analysis of Regius’s positions as these have been developed through his debate with Descartes.