The less diseased are the conducting media, the centres of nutrition, perception and volition, so much the weaker naturally will the ego-mania be, and so much the more harmlessly will it be manifested. Its least objectionable expression is the comic importance which the ego-maniac often attributes to his sensations, inclinations and activities. Is he a painter? he has no doubt that the whole history of the universe only hinges on painting, and on his pictures in particular. Is he a writer of prose or verse? he is convinced that humanity has no other care, or at least no more serious care, than for verses and books. Let it not be objected that this is not peculiar to ego-maniacs, but is the case with the vast majority of mankind. Assuredly everyone thinks what he is doing is important, and that man would not be worth much who performed his work so heedlessly and so superficially, with so little pleasure and conscientiousness, that he himself could not look upon it with respect. But the great difference between the rational and sane man and the ego-maniac is, that the former sees clearly how subordinate his occupation is to the rest of humanity, although it fills his life and exacts his best powers, while the latter can never imagine that any exertion to which he devotes his time and efforts can appear to others as unimportant and even puerile. An honest cobbler, resoleing an old boot, gives himself up heart and soul to his work, nevertheless he admits that there are far more interesting and important things for humanity than the repairing of damaged sole-leather. The ego-maniac, on the contrary, if he is a writer, does not hesitate to declare, like Mallarmé, ‘The world was made to lead up to a fine book.’ This absurd exaggeration of one’s own occupations and interests produces in literature the Parnassians and the Æsthetes.
If degeneration is deeper, and ego-mania is stronger, the latter no longer assumes the comparatively innocent form of total absorption in poetic and artistic cooings, but manifests itself as an immorality, which may amount to moral madness. The tendency to commit actions injurious to himself or society is aroused now and then even in a sane man when some obnoxious desire demands gratification, but he has the will and the power to suppress it. The degenerate ego-maniac is too feeble of will to control his impulsions, and cannot determine his actions and thoughts by a regard to the welfare of society, because society is not at all represented in his consciousness. He is a solitary, and is insensible to the moral law framed for life in society, and not for the isolated individual. It is evident that for Robinson Crusoe the penal code did not exist. Alone on his island, having only Nature to deal with, it is obvious he could neither kill, steal, nor pillage in the sense of the penal code. He could only commit misdemeanours against himself. Want of insight and of self-control are the only immoralities possible to him. The ego-maniac is a mental Robinson Crusoe, who in his imagination lives alone on an island, and is at the same time a weak creature, powerless to govern himself. The universal moral law does not exist for him, and the only thing he may possibly see and avow, perhaps also regret a little, is that he sins against the moral law of the solitary, _i.e._, against the necessity of controlling instincts in so far as they are injurious to himself.