Authors:

The more that one studies the history of the building of the American nation, the clearer it becomes that it may be justly described as a laboratory experiment in understanding and in solving the world problems of tomorrow.

"The Age of the Americas: An Address Delivered at the Parrish Memorial Art Museum, Southampton, Long Island, September 6, 1942".
The more that one studies the history of the building of the American nation, the clearer it becomes that it may be justly described as a laboratory experiment in understanding and in solving the world problems of