Nothing is so pleasing to these gods as the butchery of unbelievers. Nothing so enrages them, even now, as to have some one deny their existence.

Robert Green Ingersoll (1833-1899) American lawyer, freethinker, orator
Lecture (1872-01-29), “The Gods,” Fairbury Hall, Fairbury, Illinois
    (Source)

First given on the 135th birthday of Thomas Paine. Collected in The Gods and Other Lectures (1876).