Compare society to a boat. Her progress through the water will not depend upon the exertion of her crew, but upon the exertion devoted to propelling her. This will be lessened by any expenditure of force in fighting among themselves, or in pulling in different directions.
Henry George (September 2, 1839 October 29, 1897) was an American political economist, and the most influential proponent of the "Single Tax" on land. He is the author of "Progress and Poverty" written in 1879.