International audienceFrench liberal economists share a very surprising reading of Bentham's theory. In this paper, we underline the method according to which these French liberal economists in the nineteenth century economists understand Bentham's utilitarianism: they consider that utilitarianism deals with 'utility' but disregards justice. Such an interpretation appears when they tried to oppose the 'French school' and 'English school' of economics as well as when they discussed the foundation of property rights