Robert Green Ingersoll Quotes about Progress
Robert Green Ingersoll (1907). “The works of Robert G. Ingersoll”, p.88, Library of Alexandria
Robert Green Ingersoll (1907). “The works of Robert G. Ingersoll”, p.978, Library of Alexandria
Robert Green Ingersoll, Isaac Newton Baker (1899). “Trial of C.B. Reynolds for Blasphemy, at Morristown, N.J., May 19th and 20th, 1887”
The history of intellectual progress is written in the lives of infidels.
Robert Green Ingersoll (1907). “The works of Robert G. Ingersoll”, p.759, Library of Alexandria