Unfortunately according to the temperament of individuals their ecstasy has frequently led to an enthusiasm which knew no bounds, and induced the illuminated visionary to consider all men who did not coincide in his opinions the enemies of Divinity--hence arose fanaticism and persecution--yet did these murderous madmen conceive that they were wielding their hateful sword in the cause of an offended God; and, although we read of their excesses and cruelty with horror, they were not bad men, and many of them imagined that they were fulfilling a heavenly mission. I have known many worthy and amiable ecclesiastics in Spain and in Portugal who advocated the inquisition as a useful institution, although they readily admitted that it had too frequently been rendered instrumental to ambition and political intrigues. This state of mental exaltation is not unfrequently within the province of a physician's care. The treatment like that of all moral affections is a task of great difficulty. Perhaps the best curative means to be adopted is occupation of the body in active pursuits. St. Augustine was so convinced of this necessity of occupation to prevent ecstatic habits, that the monks of the Thebaid cultivated their ground with such industry, that they freighted several vessels with their produce. Priest has observed in his extensive practice in insanity that he never met with an insane naturalist. Travelling is also to be enjoined. Marriage has also been advised, although it is to be feared that the little charms men of this description may have to suit a woman's fancy, might lead to contemplation of a nature widely different from beatitude. The Jewish Rabbi tell us, that as soon as Moses became contemplative and prophetic, his wife Marjarin left him. It is certain that enthusiasm produces a concentration of mind prejudicial to all other functions.[5] There is no doubt that melancholy or intense cogitation may bring on this morbid condition. Zimmerman relates that the mathematician Viote was sometimes so wrapped up in calculation, that he was known to remain three days and three nights without sleep or food: and Mendelsohn the philosopher, who was called the Plato of Germany, fell into a swoon the moment philosophy was talked of; and he was therefore ordered by his doctor not to think. Being asked one day what he contrived to do when not allowed thought, he replied, "Why, I go to the window and count the tiles on the roof of the opposite house."