PrefaceFor some nineteen hundred years the Church established by Christ when He said, "Go teach all nations," has stood for all that is best in human life. The very fact that it has endured the cataclysmic changes from Roman Empire through Middle Ages and Renaissance down to modern times singles it out as a unique institution in the history of humanity. During all these profoundly trying vicissitudes of the race the Church has fostered the sense of beauty and the sense of duty. These are the sources of happiness for mankind more than any other factors. Architecture, painting, sculpture, music, poetry and the arts and crafts are indebted to the Church for constant inspiration, for the subjects that have touched men most deeply and for the opportunity to display art for the benefit of the mass of the people-the artist's greatest stimulus to achievement. The arts have been re-created over and over again, poetry provided with lofty motives and the drama reborn in the service of the Church....