Carroll Quigley, an American historian and professor, is best known for his influential works on geopolitics and the evolution of civilizations. With his seminal work "The Evolution of Civilizations," Quigley introduced groundbreaking theories on the cyclical nature of history and the role of institutions in shaping human societies, earning him recognition as a pioneering scholar in historical analysis.

"Thus, the use of fiat money is more justifiable in financing a depression than in financing a war."

"The failure of Christianity in the areas west from Sicily was even greater, and was increased by the spread of Arab outlooks and influence to that area, and especially to Spain."

"Instead, there were a variety of controls of which some could be influenced by bankers, some could be influenced by the government, and some could hardly be influenced by either."

"Hitler's economic revolution in Germany had reduced financial considerations to a point where they played no role in economic or political decisions."

"The traditional Christian attitude toward human personality was that human nature was essentially good and that it was formed and modified by social pressures and training."

"The argument that the two parties should represent opposed ideals and policies, one, perhaps, of the Right and the other of the Left, is a foolish idea acceptable only to doctrinaire and academic thinkers."

"There were people who said the Society of Cincinnati in the American revolution, of which George Washington was one of the shining lights, was a branch of the Illuminati."

"In addition to their power over government based on government financing and personal influence, bankers could steer governments in ways they wished them to go by other pressures."