Continuing with its demythony of the hegemony of twenty-five centuries of institutional writings of the history of philosophy, Michel Onfray dedicates this fifth volume of his contrahistory of philosophy to point out the utopian dimension of the liberal hedonists of the Century of the Industrial Revolution and highlight The potential of socialist, communist, anarchist and libertarian hedonism.

The readings of Bernard de Mandeville, for whom private vices are the public virtues; from Jeremy Bentham, who announces happiness for all thanks to the free market, in turn demanding imprisonment in a panoptico to any delinquent son of the liberal paup; of William Godwin, who thinks of a harmonious society under the prophetic and lutheran angle; They reveal that liberal utopia has committed great havoc and still continues today under the same principles. Against Marxist Mythology that refers all socialist thought out of Utopia, Michel Onfray restores the Eudemonist socialism inaugurated by the modern formulas of the Flora Tristan feminist, of the Individualist John Stuart Mill, of the Experimental Robert Owen, of the Gnostic and Ecologist Dionisiac Charles Fourier and of the Libertarian Mikhail Bakunin. These thinkers offer political opportunities to turn their backs on liberalism and Marxism: they embody a left without exploring and full of promises.