Social Science and National Economy by Robert Ellis Thompson

"It might be easily and fairly elaborated into an economical history of the earth, for that history is nothing but the story of man's conquest of nature's resistance and the progressive mastery of her manifold utilities"

Railroads: Their Origin and Problems by Charles Francis Adams Jr.

"The railroads have had a profound effect on American society. They have made possible the growth of a national market, and they have helped to create a more unified nation. They have also had a major impact on the development of cities and towns."

Roads, Rails, & Waterways: The Army Engineers and Early Transportation by Forest G. Hill

"Transportation is the lifeblood of a nation. Without adequate transportation facilities, no country can achieve its full economic potential."

Communism and Nationalism: Karl Marx versus Friedrich List by Roman Szporluk

"The need of a constantly expanding market for its products chases the bourgeoisie over the entire surface of the globe. It must nestle everywhere, settle everywhere, establish connections everywhere"

A History of Monetary Crimes by Alexander del Mar

"No metal, as such, can measure value with precision or equity. This is what Money alone can effect; and if there were no question of policy in the matter, I should advocate a monetary system independent of metals."