Hertzberg develops his daring thesis that the "modern, secular, anti-Semitism was fashioned not as a reaction to the Enlightenment and the Revolution, but within the Enlightenment and Revolution themselves." He finds that modern anti-Semitism owes less to Christian theological mentality than to doctrinaire libertarianism of figures such as Voltaire, d'Holbach, Diderot, and Marat.

Hertzberg develops his daring thesis that the "modern, secular, anti-Semitism was fashioned not as a reaction to the Enlightenment and the Revolution, but within the Enlightenment and Revolution themselves." He finds that modern anti-Semitism owes less to Christian theological mentality than to doctrinaire libertarianism of figures such as Voltaire, d'Holbach, Diderot, and Marat.