His work focuses on two main fields: on the one hand, the history of 17th century philosophy, in particular Descartes and cartesianism, and on the other hand, the philosophy of religion, in particular christianity. He intends to follow the tradition of "Christian rationalism", specifying that he considers it necessary to count among the great representatives of this current thinkers such as Augustine of Hippo, Thomas Aquinas, Descartes, Malebranche, Spinoza, and Pope Benedict XVI. In his work on the philosophy of religion, he does not claim to propose a new understanding of Christianity, but tries to re-explain, with tools accessible to contemporary readers, central notions of Christianity that have become difficult to understand. He has devoted books to the theme of salvation another one to marriage A Rock'n roll fan, he tried, especially in a novel, Dans l’ombre d’Adam to bring together biblical texts and some currents of the Heavy Metal. He has defended, on several occasions, from his Catholic point of view, the French metal music festival "Hellfest" He contributes to the journal La Vie. He directs the series "textes cartésiens en langue française" at editions Vrin and co-directs the series "Philosophica" at the Presses Universitaires de Rennes.
Je pense donc je suis, Nantes, Pleins Feux, series "variations", 2004, 46 p.
Malebranche, Paris, Vrin, series "bibliothèque des philosophies", 2004, 220 p.
: Activité physique et exercices spirituels. Essais de philosophie du sport, Paris, Vrin, 2008, 246 p.
Foi en dieu et raison. Théodicées. Deux essais de philosophie de la religion, Nantes, Cécile Defaut, 2009, 224 p.
Les Voies du salut. Un essai philosophique, Paris, Bayard, 2010, 418 p.
Dans le milieu d’une forêt. Essai sur Descartes et le sens de la vie, Paris, Bayard, 2012.
Dans l’ombre d’Adam, Paris, L’Œuvre, 2013.
: Dictionnaire des monothéismes, Paris, Éditions du Seuil, 2013, 702 p.
Pour la vie ? Court traité du mariage et des séparations, Paris, Seuil, 2014; reprint Paris, Seuil, cseries "Points Sagesses", 2018
La Philosophie de Descartes, Paris, Vrin, 2016, 204 p.
Mort, où est ta victoire ?, Paris, Bayard, 2017, 376 p.
Y a-t-il une philosophie chrétienne ? Trois essais, Paris, Seuil, series "Points Sagesses", 2019, 208 p.
;Editions and translations
Editing, introduction and annotation of the Lettre-préface of the Principes de la philosophie de Descartes, with a choice of texts, Paris, Garnier-Flammarion, 1996
Latin translation, introduction and annotation of Book IV of the Summa contra Gentiles by Thomas d'Aquin, Paris, Garnier-Flammarion, 1999, 2005-2
Editing, introduction and annotation of the Discours de la méthode de Descartes, with a choice of texts and a file, Paris, Le Livre de Poche, 2000
Editing and translation from Latin of Textes philosophiques d'Antoine Arnauld, Paris, PUF, series Epiméthée, 2001
Introduction and selection of texts for the reprinting of part of the Works of Antoine Arnauld at Thoemmes Presses, Bristol, 6 volumes, 2003
Translation from Latin of Part One and a selection of articles from the parts II, III and IV of the Principes de la philosophie de Descartes, Paris, Vrin, 2009.
Editing, introduction and annotation of the Vraies et fausses idées by Antoine Arnauld, Paris, Vrin, 2011
Introduction and publishing of the Entretiens sur la métaphysique et sur la religion by Nicolas Malebranche, Paris, Vrin, 2017
