"The Christians were the first to make the existence of Satan a dogma of the Church. And once that she had established it, she had to struggle for over 1,700 years for the repression of a mysterious force which it was her policy to make appear of diabolical origin. Unfortunately, in manifesting itself, this force invariably tends to upset such a belief by the ridiculous discrepancy it presents between the alleged cause and the effects. If the clergy have not over-estimated the real power of the "Arch-Enemy of God," it must be confessed that he takes mighty precautions against being recognized as the "Prince of Darkness" who aims at our souls. If modern "spirits" are devils at all, as preached by the clergy, then they can only be those "poor" or "stupid devils" whom Max Muller describes as appearing so often in the German and Norwegian tales. (Part II, Chapter I)"