A knowledge of the influences which ruled the life of Lincoln, the greatest of practical mystics, is essential now that a new form of paganism and slavery threatens humanity. In Lincoln's time the black slaves of America had to be freed; in our time the white slaves of Europe have to be freed. We have returned to the conquest. History is being repeated, but on a far vaster scale. The whole world is groaning under the threats and deeds of tyranny that seeks to become absolute. What Abraham Lincoln stood for in the middle of the nineteenth century the English-speaking peoples must stand for at the beginning of the twentieth. Materialism produced Prussian autocracy. A spiritual power brought America safely through the ordeals of the Civil War. But the material and the spiritual cannot both rule at the same time. One must yield authority to the other. And we cannot succeed by denying the very thing which caused Lincoln to triumph over all enemies and obstacles. - Summary from the book
