Since the story of the Comacine Masters has come to light, no doubt any longer remains that during the building period the order of Masons was at the height of its influence and power. At that time the building art stood above all other arts, and made the other arts bow to it, commanding the services of the most brilliant intellects and of the greatest artists of the age. Moreover, its symbols were wrought into stone long before they were written on parchment, if indeed they were ever recorded at all. Efforts have been made to rob those old masters of their honor as the designers of the cathedrals, but it is in vain.[66] Their monuments are enduring and still tell the story of their genius and art. High upon the cathedrals they left cartoons in stone, of which Findel gives a list,[67] portraying with searching satire abuses current in the Church. Such figures and devices would not have been tolerated but for the strength of the order, and not even then had the Church known what they meant to the adepts. History, like a mirage, lifts only a part of the past into view, leaving much that we should like to know in oblivion. At this distance the Middle Ages wear an aspect of smooth uniformity of faith and opinion, but that is only one of the many illusions of time by which we are deceived. What looks like uniformity was only conformity, and underneath its surface there was almost as much variety of thought as there is today, albeit not so freely expressed. Science itself, as well as religious ideas deemed heretical, sought seclusion; but the human mind was alive and active none the less, and a great secret order like Masonry, enjoying the protection of the Church, yet independent of it, invited freedom of thought and faith.[68] The Masons, by the very nature of their art, came into contact with all classes of men, and they had opportunities to know the defects of the Church. Far ahead of the masses and most of the clergy in education, in their travels to and fro, not only in Europe, but often extending to the far East, they became familiar with widely-differing religious views. They had learned to practice toleration, and their Lodges became a sure refuge for those who were persecuted for the sake of opinion by bigoted fanaticism.