"When one recollects that until the appearance of the Pilgrim's Progress the common people had almost no other reading matter except the Bible and Fox's Book of Martyrs, we can understand the deep impression that this book produced; and how it served to mold the national character. Those who could read for themselves learned the full details of all the atrocities performed on the Protestant reformers; the illiterate could see the rude illustrations of the various instruments of torture, the rack, the gridiron, the boiling oil, and then the holy ones breathing out their souls amid the flames. Take a people just awakening to a new intellectual and religious life; let several generations of them, from childhood to old age, pore over such a book, and its stories become traditions as individual and almost as potent as songs and customs on a nation's life." Douglas Campbell
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