I ENTERTAIN no doubt, O mighty Emperor Constantine,(1)-since they are impatient through excessive superstition,-that if any one of those who are foolishly religious should take in hand this work of ours, in which that matchless Creator of all things and Ruler of this boundless world is asserted, he would even assail it with abusive language, and perhaps, having scarcely read the beginning, would dash it to the ground, cast it from him, curse it, and think himself contaminated and bound by inexpiable guilt if he should patiently read, or hear these things.