In 1860 a volume dealing with the _Philosophy of Art_ appeared from his pen, in which he not only endeavoured to relate the art of a period to the general environment in which it arose, but, in addition, he dealt with certain psychological aspects of the problem. Largely as a result of the talent displayed in this work, he was appointed in 1864 to tne chair of the History of Art and Æsthetics in the Ecole des Beaux-Arts.
Taine’s interest in philosophy, and especially in psychological problems, was more prominently demon strated in his book _De l’Intelligence_, the two volumes of which appeared in 1870. In this work he takes a strict view of the human intelligence as a mechanism, the workings of which he sets forth in a precise and cold manner. His treatment of knowledge is akin, in some respects, to the doctrines of the English Utilitarian and Evolutionary School as represented by John Stuart Mill, Bain and Spencer. The main feature of the Darwinian doctrine is set by Taine in the foreground of epistemology. There is, according to him, “a struggle for existence” in the realm of the individual consciousness no less than in the external world. This inner conflict is between psychical elements which, when victorious, result in sense-perception. This awareness, or _hallucination vraie_, is not knowledge of a purely speculative character; it is (as, at a later date, Bergson was to maintain in his doctrine of perception) essentially bound up with action, with the instinct and mechanism of movement.
One of the most notable features of Taine’s work is his attitude to psychology. He rejects absolutely the rather scornful attitude adopted with regard to this science by Comte; at the same time he shatters the flimsy edifice of the eclectics in order to lay the foundation of a scientific psychology. “The true and independent psychology is,” he remarks, “a magnificent science which lays the foundation of the philosophy of history, which gives life to physiology and opens up the pathway to metaphysics.”[7] Our debt to Taine is immense, for he initiated the great current of experimental psychology for which his country has since become famous. It is not our intention in this present work to follow out in any detail the purely psychological work of the period. Psychology has more and more become differentiated from, and to a large degree, independent of, philosophy in a strictly metaphysical meaning of that word. Yet we shall do well in passing to note that through Taine’s work the scientific attitude to psychologv and its many problems was taken up and developed by Ribot, whose study of English Psychology appeared in the same year as Taine’s _Intelligence_. Particularly by his frequent illustrations drawn from abnormal psychology, Taine “set the tone” for contemporary and later study of mental activity of this type. Ribot’s later books have been mainly devoted to the study of “the abnormal,”and his efforts are characteristic of the labours of the Paris School, comprising Charcot, Paulhan, Binet and Janet.[8] French psychology has in consequence become a clearly defined “school,” with characteristics peculiar to itself which distinguish it at once from the psychophysical research of German workers and from the analytic labours of English psychologists. Its debt to Taine at the outset must not be forgotten.