“THE intellectual and political history of the sixteenth, seventeenth and eighteenth centuries, the Reformation and the Counter Reformation, the internal state of British society after the Revolution in England, the achievements of the Pilgrim Fathers, the Rights of Man, and the further events in world history have their starting point in the great disputes on nature and grace of our classical age. Neither Dante nor Cervantes nor Rabelais nor Shakespeare nor John Donne nor William Blake, nor even Oscar Wilde or D.H. Lawrence, nor Giotto, nor Michelangelo nor El Greco nor Zurbaran, nor Pascal nor Rousseau, nor Madison nor Jefferson nor Edgar Allan Poe nor Baudelaire, nor Goethe nor Nietzsche nor even Karl Marx, nor Tolstoy nor Dostoevski is actually understandable without a serious theological background. Modern philosophy itself, from Descartes to Hegel, remains enigmatic without that, for in actual fact philosophy has burdened itself all through modern times with problems and anxieties taken over from theology, so that the cultural advent of a philosophy purely philosophical is still to be waited for.
“In the cultural life of the Middle Ages philosophy was subservient to theology or rather wrapped up in it; in that of modern times it was but secularized theology. Thus the considerations I have laid down regarding philosophy are still truer of theology. Nobody can do without theology, at least a concealed and unconscious theology, and the best way of avoiding the inconveniences of an insinuated theology is to deal with theology that is consciously aware of itself. And liberal education cannot complete its task without the knowledge of the specific realm and the concerns of theological wisdom.”
~Jacques Maritain: Education at the Crossroads.