The final test of truth is ridicule. Very few religious dogmas have ever faced it and survived. Huxley laughed the devils out of the Gadarene swine. Dowie's whiskers broke the back of Dowieism. Not the laws of the United States but the mother-in-law joke brought the Mormons to compromise and surrender. Not the horror of it but the absurdity of it killed the doctrine of infant damnation.... But the razor edge of ridicule is turned by the tough hide of truth. How loudly the barber-surgeons laughed at Harvey—and how vainly! What clown ever brought down the house like Galileo? Or Columbus? Or Jenner? Or Lincoln? Or Darwin?... They are laughing at Nietzsche yet....