Bargaining With the Horse

Via Why Evolution is True:

"There is no harmony between religion and science. When science was a child, religion sought to strangle it in the cradle. Now that science has attained its youth, and superstition is in its dotage, the trembling, palsied wreck says to the athlete: “Let us be friends.” It reminds me of the bargain the cock wished to make with the horse: “Let us agree not to step on each other’s feet.”

-- Robert Ingersoll

There's a new book coming out that looks good: The Great Agnostic: Robert Ingersoll and American Freethought, by Susan Jacoby.