"Gilson criticizes attempts to trace Dante's position back to Thomism or Averroism. For St. Thomas, every hierarchy of dignity is at the same time a hierarchy of jurisdiction, while for Dante—except for God—a hierarchy of dignity is never the foundation of a hierarchy of jurisdiction, and this corresponds to Dante's specific philosophical problem, which is not so much to define the essence of philosophy as to determine functions and jurisdictions. The principle governing this determination is absolutely irreconcilable with Thomism. St. Thomas knows only one ultimate end: eternal bliss, which can only be attained through the Church; moreover, the spirituality of the ultimate end implies that between temporal and spiritual power there is a hierarchical subordination of the means to the end. For Dante, on the other hand, man can obtain, through the exercise of political virtues, a human happiness completely distinct from heavenly bliss, even if the latter represents a higher end. The thesis of the “duo ultima” legitimizes the complete distinction between the political order and the religious order, which is equally universal to that of the Church, but autonomous and pursuing an end of earthly happiness."