It will not be useless to devote a little space to this belief in the supernatural. It offers an opportunity of showing how false notions may become universal, embody themselves in law and practical life, and wonderful to be said, how they may, without anything being done to destroy them, vanish from sight of themselves, like night-spectres before the day. At present we only encounter them among the lowest peasant grades, or among those who have been purposely kept in the most abject state of ignorance. Less than a century ago the clergy of Spain wished to have the Opera prohibited, because that ungodly entertainment had given rise to a want of rain; but now, in a country so intellectually backward as that--a witch was burnt there so lately as A.D. 1781--such an attempt would call up sly wit, and make the rabble of Madrid suspect that the archbishop was smarting under the rivalry of the prima donna, and that he was furbishing up the rusty ecclesiastical enginery to sustain his cause. [Sidenote: Respective influence of the clergy, the lawyers, and physicians.] In the day of their power the ecclesiastical profession were the supporters of this delusion. They found it suitable to their interests, and, by dint of at first persuading others to believe, they at last, by habit, came to believe in it themselves. The Mohammedans and Jews were the first to assail it philosophically and by sarcasm, but its final ruin was brought about by the action of the two other professions, the legal and the medical. The lawyers, whose advent to power is seen in the history of Philip the Fair, and whose rise from that time was very rapid, were obliged to introduce the true methods of evidence; the physicians, from their pursuits, were perpetually led to the material explanation of natural phenomena in contradistinction to the mystical. It is to the honour of both these professions that they never sought for a perpetuation of power by schemes of vast organization, never attempted to delude mankind by stupendous impostures, never compelled them to desist from the expression of their thoughts, and even from thinking, by alliances with civil power. Far from being the determined antagonists of human knowledge, they uniformly fostered it, and, in its trials, defended it. The lawyers were hated because they replaced supernatural logic by philosophical logic; the physicians, because they broke down the profitable but mendacious system of miracle-cures.