‘...in theory; nor, after the rise of the Catholic Church, was it ever without persons to stand up for it. Yet to enforce it was the most arduous task which Christianity ever had to perform. For more than a thousand years the Church kept up the contest, with hardly any perceptible success. It was not for want of power over men's minds. Its power was prodigious. It could make kings and nobles resign their most valued possessions to enrich the Church. It could make thousands, in the prime of life and the height of worldly advantages, shut themselves up in convents to work out their salvation by poverty, fasting, and prayer. It could send hundreds of thousands across land and sea, Europe and Asia, to give their lives for the deliverance of the Holy Sepulchre...