POLYGAMY

Once when Mark Twain was lecturing in Utah, a Mormon acquaintance argued with him on the subject of polygamy. After a long and rather heated debate, the Mormon finally said, "Can you find for me a single passage of Scripture which forbids polygamy?"

"Certainly," replied Twain. "'No man can serve two masters.'" 

Louis Utermeyer, A Treasury of Laughter, Simon & Schuster.