But the most convincing proof of all is offered by the insane who, though not possessed of genius, apparently acquire it, for a time, while under treatment. These cases prove that geniality, originality, artistic and æsthetic creation may show themselves in the least predisposed natures, as a consequence of mental alienation. Finally, not the least important proof is contained in the singular phenomenon of the mattoid, who, as distinguished from the really insane, has all the appearances, without the reality, of genius.

Taking all this into consideration, we may confidently affirm that genius is a true degenerative psychosis belonging to the group of moral insanity, and may temporarily spring out of other psychoses, assuming their forms, though keeping its own special peculiarities, which distinguish it from all others.

The identity of genius with moral insanity is seen in that general alteration of the affective instincts, which shows itself, more or less disguised, in all,[454] even in those rare altruistic persons with a genius for goodness to whom the name of saints has been given. This also explains their longevity.

There is, beyond all doubt, some connection between all these observations, and the fact, established by Tamburini and myself, that the best artists of the asylums were all morally insane.

It should be remembered here, that the Klephts were brigands, and that the moral character of many great conquerors has been so far subject to alteration as to make of them true brigands on a large scale. Arved Barine, in noticing the beauty of countenance of certain brigands figured in my work in L’uomo Delinquente, has very justly observed[455] that “such a profession requires high intellectual endowments, and precisely the same as those needed by conquerors, who certainly have had no superabundance of moral sense. History proves that the moral sense is in no degree a function of the intellect. Great men have been so often devoid of it, that the world has been forced to invent for them a special morality which may be summed up in five words, frequently uttered by such—from Napoleon down to Benvenuto Cellini: Everything is permitted to genius.”

Men of genius are among the principal factors in true revolutions.[456] History records the saying of Tarquin that for the preservation of despotism it was necessary to cut down the tallest heads. Carlyle believed that the whole of history is that of great men. Emerson wrote that every new institution might be regarded as the prolonged shadow of some man of genius, Islamism of Mahomet, Protestantism of Calvin, Quakerism of Fox, Methodism of Wesley, Abolitionism of Clarkson, &c. Men of genius, wrote Flaubert,[457] summarise in a single type many separate personalities, and bring new persons to consciousness in the human race. This is one of the causes of their immense influence. And not only are they not misoneistic; they are haters of old things and ardent lovers of the new and the unknown. Garibaldi, when he pushed on into almost unknown regions of America, said, “I love the unknown.”[458] And Christ carried his idea of the new world, that was about to appear, as far as complete communism. Many men of genius rule beyond the tomb: Cæsar was never so powerful (wrote Michelet) as when he was a corpse; and so William the Silent. Max Nordau even claims that all human progress is owing to despots of genius. “Every revolution is the work of a minority whose individuality cannot conform to conditions which were neither calculated nor created for them.” The only real innovators known to history are tyrants endowed with ability and knowledge. “No revolution succeeds without a leader,” wrote Machiavelli; and elsewhere, “A multitude without a head is useless.” This is natural, because the man of genius, being essentially original and a lover of originality, is the natural enemy of traditions and conservatism: he is the born revolutionary, the precursor and the most active pioneer of revolutions.

CHAPTER III.
The Epileptoid Nature of Genius.

Etiology—Symptoms—Confessions of men of genius—The life of a great epileptic—Napoleon—Saint Paul—The saints—Philanthropic hysteria.

WE may, however, enter more deeply into the study of the phenomena of genius by the light of modern theories on epilepsy. According to the entirely harmonious researches of clinical and experimental observers, this malady resolves itself into localised irritation of the cerebral cortex, manifesting itself in attacks which are sometimes instantaneous, sometimes of longer duration, but always intermittent and always resting on a degenerative basis—either hereditary or predisposed to irritation by alcoholic influence, by lesions of the skull, &c.[459] In this way we catch a glimpse of another conclusion, viz., that the creative power of genius may be a form of degenerative psychosis belonging to the family of epileptic affections.

The fact that genius is frequently derived from parents either addicted to drink, of advanced age, or insane, certainly points to this conclusion, as also does the appearance of genius subsequently to lesions of the head. It is also indicated by frequent anomalies, especially of cranial asymmetry; the capacity of the skull being sometimes excessive, sometimes abnormally small; by the frequency of moral insanity, and of hallucinations; by sexual and intellectual precocity, and not rarely by somnambulism. To these we may add the prevalence of suicide, which is, on the other hand, very common among epileptic patients; the intermittence of bodily and mental functions, more particularly the occurrence of amnesia and analgesia; the frequent tendency to vagabondage; religious feeling, manifesting itself even in the case of atheists, as with Comte; the strange terrors by which they are often seized (W. Scott, Byron, Haller); the double personality, the multiplicity of simultaneous delusions, so common in epileptic cases;[460] the frequent recurrence of delusions produced by the most trifling causes; the same misoneism; and the same relation to criminality, which finds its point of union in moral insanity. Add to this the origin and ancestry of criminals and imbeciles, which constantly show traces both of genius and epilepsy, as may be seen in the genealogical charts given of the families of the Cæsars and Charles V.;[461] and the strange passion for wandering, and for animals, which I have also often found in degenerated, and especially in epileptic, subjects.[462]