But the deadliest blow to the cause of health was struck by the anti-natural fanaticism of the Middle Ages, the world-hating infatuation of the maniacs who depreciated every secular blessing as a curse in disguise, and despised their own bodies as they despised nature, life, and earth. The disciples of the world-renouncing messiah actually welcomed disease as a sign of divine favor, they gloried in decrepitude and deformity, and promoted the work of degeneration with a persevering zeal never exceeded by the enlightened benefactors of the human race. For a period of fifteen hundred years the ecclesiastic history of Europe is the history of a systematic war against the interests of the human body; the “mortification of the flesh” was enjoined as a cardinal duty of a true believer; health-giving recreations were suppressed, while health-destroying vices were encouraged by the example of the clergy; domestic hygiene was utterly neglected, and the founders of some twenty-four different monastic orders vied in the invention of new penances and systematic outrages upon the health of the poor convent-slaves. Their diet was confined to the coarsest and often most loathsome food; they were subjected to weekly bleedings, to profitless hardships and deprivations; their sleep was broken night after night; fasting was carried to a length which often avenged itself in permanent insanity; and their only compensation for a daily repetition of health-destroying afflictions was the permission to indulge in spiritual vagaries and spirituous poisons: the same bigots who grudged their followers a night of unbroken rest or a mouthful of digestible food indulged them in quantities of alcoholic beverages that would have staggered the conscience of a modern beer-swiller. The bodily health of a community was held so utterly below the attention of a Christian magistrate that every large city became a hotbed of contagious diseases; small-pox and scrofula became pandemic disorders; the pestilence of the Black Death ravaged Europe from end to end—nay, instead of trying to remove the cause of the evil, the wretched victims were advised to seek relief in prayer and self-torture, and a philosopher uttering a word of protest against such illusions would have risked to have his tongue torn out by the roots and his body consigned to the flames of the stake.