On the whole, if Walking Stewart were at all crazy, he was so in a way which did not affect his natural genius and eloquence--but rather exalted them. The old maxim, indeed, that 'Great wits to madness sure are near allied,' the maxim of Dryden and the popular maxim, I have heard disputed by Mr. Coleridge and Mr. Wordsworth, who maintain that mad people are the dullest and most wearisome of all people. As a body, I believe they are so. But I must dissent from the authority of Messrs. Coleridge and Wordsworth so far as to distinguish. Where madness is connected, as it often is, with some miserable derangement of the stomach, liver, &c. and attacks the principle of pleasurable life, which is manifestly seated in the central organs of the body (i.e. in the stomach and the apparatus connected with it), there it cannot but lead to perpetual suffering and distraction of thought; and there the patient will be often tedious and incoherent. People who have not suffered from any great disturbance in those organs are little aware how indispensable to the process of thinking are the momentary influxes of pleasurable feeling from the regular goings on of life in its primary function; in fact, until the pleasure is withdrawn or obscured, most people are not aware that they _have_ any pleasure from the due action of the great central machinery of the system: proceeding in uninterrupted continuance, the pleasure as much escapes the consciousness as the act of respiration: a child, in the happiest state of its existence, does not _know_ that it is happy. And generally whatsoever is the level state of the hourly feeling is never put down by the unthinking (_i.e._ by 99 out of 100) to the account of happiness: it is never put down with the positive sign, as equal to + x; but simply as = 0. And men first become aware that it _was_ a positive quantity, when they have lost it (_i.e._ fallen into--x). Meantime the genial pleasure from the vital processes, though not represented to the consciousness, is _immanent_ in every act--impulse--motion--word--and thought: and a philosopher sees that the idiots are in a state of pleasure, though they cannot see it themselves. Now I say that, where this principle of pleasure is not attached, madness is often little more than an enthusiasm highly exalted; the animal spirits are exuberant and in excess; and the madman becomes, if he be otherwise a man of ability and information, all the better as a companion. I have met with several such madmen; and I appeal to my brilliant friend, Professor W----, who is not a man to tolerate dulness in any quarter, and is himself the ideal of a delightful companion, whether he ever met a more amusing person than that madman who took a post-chaise with us from ---- to Carlisle, long years ago, when he and I were hastening with the speed of fugitive felons to catch the Edinburgh mail. His fancy and his extravagance, and his furious