Robert G. Ingersoll (1833-1899) was perhaps the most famous American of his day. As an enlightened freethinker and pioneer of humane, rational, and agnostic views, Ingersoll was a tireless advocate of rational thought, who battled superstition and hypocrisy wherever he found it. This dedicated popularizer would regularly address huge audiences, opening their minds to ideas that often provoked guarded whispers in private. Ingersoll was a man far ahead...