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. 
If it should be said that the traditional opinion of science, as well as the 
general sentence of mankind, have always regarded reflection as the 
basis of the difference between animals and man, so that there is no 
novelty in our principle, the assertion is erroneous. Reflection, as an 
inward psychical fact, has certainly been observed by psychologists and 
philosophers in all civilized times, and instinctively by every one; nor 
could it be otherwise, since reflection is one of the facts most evident to 
human consciousness. But although the fact, or the intrinsic and 
characteristic action of human thought has been observed, and has often 
been discussed and analyzed in some of its elements, yet its genesis has 
not been declared, nor has its ultimate cause been discovered. We 
propose to discover this ultimate cause, and we refer it to the exercise 
of the will over all the elements and acts which constitute human 
intelligence; an intelligence only differing from that of animals by this
inward and deliberate fact, which enables man to consider and examine 
all his acts, thus logically doubling their range. This intelligence has in 
animals a simple and direct influence on their bodies and on the 
external world, in proportion to their diverse forms and inherited 
instincts; while in man, owing to his commanding attitude, it falls back 
upon itself, and gives rise to the inquiring and reflective habit of 
science. 
We do not, therefore, divide man from other animals, but rather assert 
that many proofs and subtle analyses show the identity of their 
intelligence in its fundamental elements, while the difference    
    
		
	
	
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