Comte showers derision upon the method of internal observation which is practised by the “psychologists.” The sharpness of his language is at least partially explained by the indignation with which Cousin’s “charlatanisme” inspired him. This “famous sophist,” in whom he recognises some of the gifts of an orator, and in particular that of a mimic, according to him, exercises most unfavourable influence over the minds of men.[181] He turns them aside from the positive path, which they are about to enter, to bring them back to metaphysical dialectics, or to hollow and sonorous rhetoric. And, to crown all, this “psychology” claims to follow a scientific method! the very method which has succeeded so well in the natural sciences! It conceives the idea of practising internal observation, as physics makes use of external observation. But what is this internal observation? How can the function of the same organ be to think, and at the same time to observe that it thinks? We conceive that man should be able to observe himself if it is a question of the passions which animate him. No anatomical reason is opposed to this since the organs which are the seat of the passions, are distinct from those which are used for the observing functions. But as to observing the intellectual phenomena in the same way, it is manifestly impossible. In this case, the organ which is observed being one with the observing organ, how could the observation take place?
This objection does not only hold against the eclectics, but also against the Scottish school and the ideologists. We already find it set forth in a letter from Comte to Valat on the 24th, of September, 1819, when he was perhaps not yet acquainted with Cousin. “With what should we observe the mind itself, its operations, its activity? We cannot divide our mind, that is to say, our brain, into two parts, of which one acts while the other looks on, to see how it goes to work. The so-called observations made on the human mind, considered in itself and a priori, are pure illusions. All that we call logic, metaphysics, ideology, is an idle fancy and a dream, when it is not an absurdity.”[182]
This text, to which we could add many similar ones, allows us to rectify an erroneous, although a frequent interpretation of Comte’s thought. He does not deny that we are informed by consciousness of the existence of psychical phenomena. On the contrary, he expressly recognises the fact. What he regards as impossible is to study the activity of thought by means of reflection, that is to discover the “intellectual laws” by a method of internal observation. In a word, it is such works as those of Condillac, of the ideologists, of Reid, etc., which he condemns in their principle. In these works the subject matter is the theory of knowledge, and not that which is called to-day psychology proper.
If, instead of seeking specially for the intellectual laws, we wish to study psychical phenomena in general, internal observation will become possible in a certain number of cases. But it will not lead to the end which we wish to reach. It excludes the use of the comparative method, so fertile and so indispensable in the whole domain of biology. It only studies man, and even adult and healthy man. What will it tell us of the child, of the mentally deranged, of the animal?[183] Will it, like Descartes, go so far as to deny the existence of a psychical life in animals? Still this life cannot be studied by internal observation. We must then have recourse to another method.
Strictly speaking, there are only two methods which are suitable for the science of those phenomena. Either we determine with all possible precision the various organic conditions on which they depend: this is the object of what Comte calls phrenological psychology. Or else we observe directly the products of the intellectual and moral activity, and this study then belongs to sociology. But, if by this supposed psychological, method we set aside the consideration of the agent, that is to say of the organ, and that of the action, that is to say of the productions of the human faculties, what can remain “unless an unintelligible logomachy,” or verbal entities which are substituted to real phenomena? Here then is the study of the most difficult and most complex functions suspended, as it were, in the air, without any point at which it touches the simpler and more perfect sciences, “over which, on the contrary, it is claimed that it should reign majestically.”
Nothing is more opposed to the general order of nature, in which we always see the more complex and higher phenomena subordinated, so far as the conditions of their existence are concerned, to the more simple and commoner ones. As the biological depend upon the inorganic phenomena, just as, within biology, the phenomena of animal life are subordinated to those of organic life, so the intellectual and moral phenomena depend upon the other biological functions. Beyond their own particular laws, the laws of all the subjacent orders of phenomena also govern them. Can we study them as if all these laws did not exist? Let the metaphysician be free to do so. The scientific man who follows the positive method will proceed on other lines.
A defective method could lead but to false results. Notwithstanding the differences in their doctrines, ideologists and psychologists have agreed to place the intellectual functions in the front rank, and to thrust the affective functions further back. The mind has become the almost exclusive subject of their speculations. Look at the titles of their great works since Locke’s “Essay on the Human Understanding—Principles of Human Knowledge—On the origin of our Ideas—On Sensations—Ideology, etc.” The various affective faculties have been left comparatively in the shade. Now, it is the contrary which should have been done. Experience shows that the affections, the passions, the inclinations, play by far the most important part in the life of animals and even of man. Far from being the result of intelligence their “spontaneous and independent” impulse is indispensable for the first awakening, and afterwards for the development, of the various intellectual faculties. “Against all evidence man has been represented as essentially reasoning, as being continually performing unaware a multitude of imperceptible calculations with scarcely any spontaneity, even from tenderest childhood.”[184]
Had the study of the psychical functions been made upon animals at the same time as upon man, this error would not have lasted long. But philosophers were maintained in it, on the contrary, by metaphysical and even theological preoccupations. The science of mental functions had to establish a difference, not only of degree but of kind between man and animals. It was further required, by reason of another necessity closely allied to the former, that the soul should be considered as being immortal. And it was consequently necessary that the “ego” should present metaphysical characteristics of unity, of simplicity and of identity. Now, it is by thought that man is most distinguished from animals. It is therefore from thought that the characteristics attributed to the soul or to the “ego” have been borrowed.
But in fact the “ego” is not the absolute unity which the eclectic psychologists say that it is. It represents the feeling which the superior living being has, at every moment of the “sympathies” and the “synergies” which take place within the organism. It is the conscious expression of what the French call to-day “cénesthésie.” Far from being directly perceived as Cousin asserts, it is the indirect product of a quantity of sensations and sentiments, of which the majority are not perceived in the normal state.[185] It is especially by pathological facts, (diseases of the personality, double consciousness, lunacy, etc.), that the attention of the scientific man is drawn to this very complex phenomenon. It is, moreover, impossible to regard the sentiment of the “ego” as belonging exclusively to man. Everything leads us to believe that it also exists in the other higher animals. In any case there is no metaphysical doctrine to be founded upon this exceedingly complex and very unstable sentiment. Comte is here speaking as the successor of Hume and of Cabanis. In the clearest manner he defines his opposition to Cousin’s doctrine. The latter draws the whole of philosophy from the analysis of the “ego,” Comte draws nothing from it.
He does not, however, stop to show the superiority of the positive method over theological or metaphysical method in this matter. Of what use would it be? The progress of science, in the end, gets the better of methods which have become antiquated and barren. Metaphysicians have already passed from the state of “domination” to that of “protestation.”[186] And when the positive method gets a footing in an order of phenomena, there is no instance in which, sooner or later, it has not asserted its mastery over it.