From The Thirteenth, Greatest of Centuries:
"Is it any wonder, then, that we should call the generations that gave us the cathedrals, the universities, the great technical schools that were organized by the trades guilds, the great national literatures that lie at the basis of all our modern literature, the beginnings of sculpture and of art carried to such heights that artistic principles were revealed for all time, ... the greatest of human history?"
Born in Rochester, New York, Walsh obtained his medical degree at the University of Pennsylvania and taught at Fordham. He was a popular writer and lecturer on religion, science, and Church history. The Thirteenth, Greatest of Centuries (1907), a bestseller that led to his invitation to Theodore Roosevelt's White House, marked a resurgence in American Catholic interest in the medieval period.