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It must be remembered too that madness itself has a thousand forms, numberless causes, and even some distinct names. Delusion, infatuation, frenzy, lunacy—these are not the same; they all express different degrees of the affection. Again, the causes are not only different in men and women, but, in men, they are different for the old and for the young; for instance, in young men some redundant humour is the usual cause; whereas with the old a shrewdly timed slander, or very likely a fancied domestic slight, will get hold of them, first cloud their understanding, and finally drive them distracted. As for women, all sorts of things effect a lodgement and make easy prey of them, especially bitter dislike, envy of a prosperous rival, pain or anger. These feelings smoulder on, gaining strength with time, till at last they burst out in madness.
