Jean-Pierre Cléro is a professor of philosophy at the University of Rouen and director of the Bentham Center (Institut d’études politiques, Paris). His research, based on study of the passions in Hume (La philosophie des passions chez David Hume, 1985), has given rise to several works on classical English philosophy of the 17th and 18th centuries (Hume, un philosophe des contradictions, 1998), then the philosophy of Bentham: translations of Chrestomathia (2004), Springs of Action (2008), Introduction to the Principals of Morals and Legislation (2011), et studies: Bentham, un philosophe de l'utilité (2006). Then utilitarianism became, rather than a doctrine from the past studies as historical object, a mode of approach to esistemological (La Raison des fictions, 2005), ethical (Calcul moral, 2011) and juridical problems, which can arise in modern times and in the present, to arrive at a philosophy of fictions, in the framework of research essentially oriented towards the Anglo-Saxon world (Essai sur les fictions, Hermann, late 2013 - early 2014).