The publication of Claude Bernard’s volume Introduction à la Médecine experimentale[[3]] drew from the pen of Paul Janet, the last of the Eclectic School dominated by Cousin, an article of criticism which appeared in the Revue des Deux Mondes, and was later published in his volume of essays entitled, Les Problèmes du XIXe Siècle. Although Janet’s essay reveals all the deficiencies of the older spiritualism, he makes a gallant attempt to combat the dogmatism and the assumed finality of Bernard’s point of view and that of the scientists in general. Janet regarded the sciences and their relation to philosophy as constituting an important problem for the century and in this judgment he was not mistaken.

[3] Cf. Livre III., Science, chap, i., on “Method in General”; chap, ii., on The Experimental Method in Physiology,” pp. 213-279.

I

We have, in our Introductory Chapter, reckoned Auguste Comte among the influential antecedents of our period. Here, in approaching the study of the problem of science, we may note that the tendency towards the strictly scientific attitude, and to the promotion of the scientific spirit in general, was partly due to the influence of his positivism. Comte’s intended Religion of Humanity failed, his system of positive philosophy has been neglected, but the SPIRIT which he inculcated has abided and has borne fruit. We would be wrong, however, if we attributed much to Comte as the originator of that spirit. His positive philosophy, although it greatly stimulated and strengthened the positive attitude adopted by the natural sciences, was itself in large measure inspired by and based upon these sciences. Consequently much of Comte’s glory was a reflected light, his thought was a challenge to the old spiritualism, an assertion of the rights of the sciences to proclaim their existence and to demand serious consideration.

Although he succeeded in calling the attention of philosophy to the natural sciences, yet owing to the mere fact that he based himself on the sciences of his day much of his thought has become obsolete by the progress and extension of those very sciences themselves. He tended, with a curious dogmatism, to assign limits to the sciences by keeping them in separate compartments and in general by desiring knowledge to be limited to human needs. Although there is important truth in his doctrine of discontinuity or irreducible differences, the subsequent development of the natural sciences has cleared away many barriers which he imagined to be impassable. There still are, and may always be, gaps in our knowledge of the progress from inorganic to organic, from the living creature to self-conscious personality, but we have a greater conception of the unity of Nature than had Comte. Many new ideas and discoveries have transformed science since his day, particularly the doctrines dealing with heat as a form of motion, with light, electricity, and the radio-activity of matter, the structure of the atom, and the inter-relation of physics and chemistry.

Comte’s claim for different methods in the different departments of science is of considerable interest, in view of present-day biological problems and the controversies of vitalists, mechanists and neo-vitalists.[[4]] Although Comte insisted upon discontinuity, yet he urged the necessity for an esprit d’ensemble, the consideration of things synthetically, in their “togetherness.” He feared that analysis, the esprit de détail or mathematisation, was being carried out à l’outrance. This opinion he first stated in 1825 in his tract entitled Considérations sur les Sciences et les Savants. On the social side he brought this point out further by insisting on the esprit d’ensemble as involving the social standpoint in opposition to a purely individualistic view of human life.

[4] See, for example, The Mechanism of Life, by Dr. Johnstone, Professor of Oceanography in the University of Liverpool. (Arnold, 1921.)

Comte was slow to realise the importance of Ethics as an independent study. Psychology he never recognised as a separate discipline, deeming it part of physiology. He gave a curious appreciation to phrenology. Unfortunately he overlooked the important work done by the introspectionist psychologists in England and the important work of Maine de Biran in his own country. One is struck by Comte’s inability to appreciate the immense place occupied by psychology in modern life and in particular its expression in the modern novel and in much modern poetry. An acquaintance with the works of men like De Regnier, Pierre Loti and Anatole France is sufficient to show how large a factor the psychological method is in French literature and life. It is to be put down to Comte’s eternal discredit that he failed to appreciate psychology. Here lies the greatest defect in his work, and it is in this connection that his work is now being supplemented. Positivism in France to-day is not a synonym for “Comtism” at all; the term is now employed to denote the spirit and temper displayed in the methods of the exact sciences. For Comte, we must never forget, scientific investigation was a means and not an end in itself. His main purpose was social and political regeneration. Positivism since Comte differs from his philosophy by a keen attention bestowed upon psychology, and many of Comte’s inadequate conceptions have been enriched by the introduction of a due recognition of psychological factors.

It is to be noted that Comte died two years before Darwin’s chef-d’œuvre appeared, and that he opposed the doctrine of evolution as put forward by Lamarck. Although Comte’s principle of discontinuity may in general have truth in it, the problem is a far more complicated one than he imagined it to be. Again, while Comte’s opposition to the subjectivism of Cousin was a wholesome influence, he did not accord to psychology its full rights, and this alone has been gravely against the acceptance of his philosophy, and explains partly the rise and progress of the new spiritualist doctrines. His work served a useful purpose, but Comte never closed definitely with the problem of the precise significance of “positivism” or with its relation to a general conception of the universe; in short, he confined himself to increasing the scientific spirit in thought, leaving aside the difficulty of relating science and philosophy.

Comte stated in his Philosophie positive[[5]] that he regarded attempts to explain all phenomena by reference to one law as futile, even when undertaken by the most competent minds well versed in the study of the sciences. Although he believed in discontinuity he tried to bridge some gaps, notably by his endeavour to refer certain physiological phenomena to the law of gravitation.