If we are able to solve this difficult problem, a fact most important to science and to the advancement of these special studies must result from it: the assimilation and concentration of all the sources of myth into a single act, whether normal or abnormal to humanity. To say that animism is the general principle of myth does not reduce the different sources whence it proceeds to a single psychical and organic act, since they remain distinct and separate in their respective orbits. To attain our object, it is necessary that the direct personification of natural phenomena, as well as the indirect personification of metaphor; the infusion of life into a man's own shadow, into reflex images and dreams; the belief in the reality of normal illusions, as well as of the abnormal hallucinations of delirium, of madness, and of all forms of nervous affections; all these things must be resolved into a single generating act which explains and includes them. It must be shown how and why there is found in man the possibility of modifying all these mythical forms into an image supposed to be external to himself, living and personal. For if we are enabled to reply scientifically to such inquiries, we shall not only have concentrated in a single fact all the most diverse normal and abnormal forms of myth peculiar to man, but we shall also have given an ulterior and analytic explanation of this fact.
I certainly do not presume to declare myself competent to effect so much, and I am more conscious than my critics how far I fall short of my high aim; but the modest attempt, made with the resolution to accept all criticism offered with courtesy and good faith, does not imply culpable presumption nor excessive vanity.
I regret to say that it is not on this point only that my theory of myth differs from that of others; I shall not be satisfied if I only succeed in discovering in man the primitive act which issues the general animism of things, which becomes the substance of the ulterior myths in their intellectual and historical evolution. It is evident, at least to those who do not cling obstinately to old traditions, that man is evolved from the animal kingdom. The comparative anatomy, physiology, and psychology of man and other animals distinctly show their intimate connection in conformation, tissues, organs, and functions, and above all, in consciousness and intelligence. This truth, deduced from simple observation and experiment, must lead to the conviction that all issued from the same germ, and had the same genesis.
For those who do not cherish pedantic and sectarian prejudices, this hypothesis is changed into assurance by modern discoveries; it is shown in the transformations and transitions of paleontological forms; in the embryogenic evolution of so many animals, man included, which, according to their various species, reveals the lower types whence they issued; in the successive forms taken by the f[oe]tus; in the powerful and indisputable laws of selection; in the modifications by adaptation of the different organisms, and in the effects of isolation. This is the only rational explanation, confirmed as it is by fresh facts every day, of the multiplicity and variety of organic forms in the lapse of time; unless, indeed, we ascribe such variety to a miracle, even more difficult to accept than the difficulties of the opposite-theory.
I admit that evidence for the complete demonstration of this theory is sometimes wanting; the gaps between the fossil fauna and flora and those of modern times are neither few nor unimportant; but on the other hand, such proofs are accumulating, and the gaps are filled up every day, so that we may almost assert that in some way or other, by means somewhat different from those on which we now rely, the great rational principle of evolution will be successfully and permanently established.
It is more than twenty years since, in ways and by study peculiar to ourselves, we first devoted ourselves to this theory, and while we gave a conscientious consideration to opposite theories, so as to estimate with sincerity their importance and value, we could not relinquish our conviction that every advance in physical, biological, and social science served to confirm the theory of evolution.
It must not be supposed that I make any dogmatic assertion, which might possibly be erroneous, when I say that the evidence of facts does not contradict the assumptions of modern science. Sincere convictions should offend no one, nor do they indicate an a priori conflict with other beliefs. Every one is justified in thinking his own thoughts when he speaks with moderation and supports his peculiar opinions with a certain amount of learning.
It is not denied, even by those who oppose modern theories respecting the genesis of organisms, that there are, excluding some psychical elements, many and important points of resemblance between man and animals in the exercise of their consciousness, intelligence, and emotions, if indeed they are not identically the same. The comparative psychology of man and animals plainly shows that the perceptions, both in their respective organs and in their mode of action, act in the same way, especially in the higher animals; and the origin, movements, and associations of the imagination and the emotions are likewise identical. Nor will it be disputed that we find in animals implicit memory, judgment, and reasoning, the inductions and deductions from one special fact to another, the passions, the physiological language of gestures, expressive of internal emotions, and even, in the case of gregarious animals, the combined action to effect certain purposes; so that, as far as their higher orders are concerned, animals may be regarded as a simple and undeveloped form of man, while man, by his later psychical and organic evolution, has become a developed and complex animal.[4]
In my book on the fundamental law of intelligence in the animal kingdom, I attempted to show this great truth, and to formulate a principle common to all animals in the exercise of their psychical emotions, by setting forth the essential elements as they are generally displayed. I think I was not far from the truth in establishing a law which seems indubitable; although, while some men whose opinion is worthy of esteem have accepted it, other very competent judges have objected to some parts of my theory, but without convincing me of error. I repeat my conclusions here, since they are necessary to the theory of the genesis of myth, which I propose to explain in this work. I hold the complete identity between man and animals to be established by the adequate consideration of the faculties, the psychical elements of consciousness and intelligence, and the mode of their spontaneous exercise; and I believe the superiority of man to consist not so much in new faculties as in the reflex effect upon themselves of those he possesses in common with the animals. The old adage confirms this theory: Homo duplex.
No one now doubts that animals feel, hear, remember, and the like, while man is able to exercise his will, to feel, to remember, deliberately to consider all his actions and functions, because he not only possesses the direct and spontaneous intuition with respect to himself and things in general which he has in common with animals, but he has an intuitive knowledge of that intuition itself, and in this way he multiplies within himself the exercise of his whole psychical life. We find the ultimate cause of this return upon himself, and his intuition of things, in his deliberate will, which does not only immediately command his body and his manifold relative functions, but also the complex range of his psychical acts. This fact, which as I believe has not been observed before, is of great importance. It is manifest that the difference between man and other animals does not consist in the diversity or discrepancy of the elements of the intelligence, but in its reflex action on itself; an action which certainly has its conditions fixed by the organic and physiological composition of the brain.