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).