My research mainly concerns the question of knowing what types of relations there are between our concepts of attitudes and intentional actions (in particular those of belief, intention and desire) and basic normative concepts like those of reason and rationality.

It is widely acknowledged that attitudes and intentional actions are governed by norms, but that is as far as the consensus goes. Are the norms of belief similar to those of action and intention? Are they at least commensurable? Do they have one or more common sources? Can they be explained using the same basic concepts? Is the existence of such standards compatible with some form or other of philosophical naturalism? These are some of the general questions that guide my research

My research mainly concerns the work of Kant, approached from a historical perspective. I am interested in both his theoretical philosophy (intuitive character of space, principle of causality, status of the thing in itself, theory of philosophical discourse) and his practical philosophy in the larger sense (moral experience, radical evil, international law). I am also looking at the contemporary reception of Kant’s thought (F. H. Jacobi and K. L. Reinhold) and the critical use of his views in German idealism, in particular by J. G. Fichte. The extensions of the Kantian approach in terms of historical epistemology are also one of my interests (H. Rickert and G. Simmel).

My current research deals mainly with the nature, scope and modalities of intellectual cognition, as the question was posed historically in medieval university debates (13^th and 14^th centuries). I am also interested in problems of ontology and metaphysics, especially in the topic of universals, as well as epistemological issues involved in the question of the relationship between the philosophical and religious discourses. My publications almost always comprise three dimensions: the critical edition of Latin texts from the High and Late Middle Ages, the translation of these documents into French, and their interpretation and analysis from the viewpoint of a critical history of medieval thought.