Till about fifty years ago, he said, generalisations on man and society have erred by implicitly assuming that human nature and society will for ever revolve in the same orbit and exhibit virtually the same phenomena. This is still the view of the ostentatiously practical votaries of common sense in Great Britain; whereas the more reflective minds of the present age, analysing historical records more minutely, have adopted the opinion that the human race is in a state of necessary progression. The reciprocal action between circumstances and human nature, from which social phenomena result, must produce either a cycle or a trajectory. While Vico maintained the conception of periodic cycles, his successors have universally adopted the idea of a trajectory or progress, and are endeavouring to discover its law. [Footnote: Philosophical writers in England in the middle of the century paid more attention to Cousin than to Comte or Saint-Simon. J. D. Morell, in his forgotten History and Critical View of Speculative Philosophy (1846), says that eclecticism is the philosophy of human progress (vol. ii. 635, 2nd ed.). He conceived the movement of humanity as that of a spiral, ever tending to a higher perfection (638).]
But they have fallen into a misconception in imagining that if they can find a law of uniformity in the succession of events they can infer the future from the past terms of the series. For such a law would only be an "empirical law"; it would not be a causal law or an ultimate law. However rigidly uniform, there is no guarantee that it would apply to phenomena outside those from which it was derived. It must itself depend on laws of mind and character (psychology and ethology). When those laws are known and the nature of the dependence is explained, when the determining causes of all the changes constituting the progress are understood, then the empirical law will be elevated to a scientific law, then only will it be possible to predict.
Thus Mill asserted that if the advanced thinkers who are engaged on the subject succeed in discovering an empirical law from the data of history, it may be converted into a scientific law by deducing it a priori from the principles of human nature. In the meantime, he argued that what is already known of those principles justifies the important conclusion that the order of general human progression will mainly depend on the order of progression in the intellectual convictions of mankind.
Throughout his exposition Mill uses "progress" in a neutral sense, without implying that the progression necessarily means improvement. Social science has still to demonstrate that the changes determined by human nature do mean improvement. But in warning the reader of this he declares himself to be personally an optimist, believing that the general tendency, saving temporary exceptions, is in the direction of a better and happier state.
8.
Twenty years later [Footnote: In later editions of the Logic.] Mill was able to say that the conception of history as subject to general laws had "passed into the domain of newspaper and ordinary political discussion." Buckle's HISTORY OF CIVILISATION IN ENGLAND [Footnote: 2 Vol. i. appeared in 1857, vol. ii. in 1861.] which enjoyed an immediate success, did a great deal to popularise the idea. In this stimulating work Buckle took the fact of Progress for granted; his purpose was to investigate its causes. Considering the two general conditions on which all events depend, human nature and external nature, he arrived at two conclusions: (1) In the early stage of history the influence of man's external environment is the more decisive factor; but as time goes on the roles are gradually inverted, and now it is his own nature that is principally responsible for his development. (2) Progress is determined, not by the emotional and moral faculties, but by the intellect; [Footnote: This was the view of Jouffroy, Comte, and Mill; Buckle popularised it.] the emotional and moral faculties are stationary, and therefore religion is not a decisive influence in the onward movement of humanity. "I pledge myself to show that the progress Europe has made from barbarism to civilisation is entirely due to its intellectual activity.... In what may be called the innate and original morals of mankind there is, so far as we are aware, no progress." [Footnote: Buckle has been very unjustly treated by some critics, but has found an able defender in Mr. J.M. Robertson (Buckle and his Critics (1895)). The remarks of Benn (History of Rationalism in the Nineteenth Century, ii. 182 sqq.) are worth reading.]
Buckle was convinced that social phenomena exhibit the same undeviating regularity as natural phenomena. In this belief he was chiefly influenced by the investigations of the Belgian statistician Quetelet (1835). "Statistics," he said, "has already thrown more light on the study of human nature than all the sciences put together." From the regularity with which the same crimes recur in the same state of society, and many other constant averages, he inferred that all actions of individuals result directly from the state of society in which they live, and that laws are operating which, if we take large enough numbers into account, scarcely undergo any sensible perturbation. [Footnote: Kant had already appealed to statistics in a similar sense; see above, p. 243.] Thus the evidence of statistics points to the conclusion that progress is not determined by the acts of individual men, but depends on general laws of the intellect which govern the successive stages of public opinion. The totality of human actions at any given time depends on the totality of knowledge and the extent of its diffusion.
There we have the theory that history is subject to general laws in its most unqualified form, based on a fallacious view of the significance of statistical facts. Buckle's attempt to show the operation of general laws in the actual history of man was disappointing. When he went on to review the concrete facts of the historical process, his own political principles came into play, and he was more concerned with denouncing the tendencies of which he did not approve than with extricating general laws from the sequence of events. His comments on religious persecution and the obscurantism of governments and churches were instructive and timely, but they did not do much to exhibit a set of rigid laws governing and explaining the course of human development.
The doctrine that history is under the irresistible control of law was also popularised by an American physiologist, J. W. Draper, whose HISTORY OF THE INTELLECTUAL DEVELOPMENT OF EUROPE appeared in 1864 and was widely read. His starting-point was a superficial analogy between a society and an individual. "Social advancement is as completely under the control of natural law as a bodily growth. The life of an individual is a miniature of the life of a nation," and "particles" in the individual organism answer to persons in the political organism. Both have the same epochs—infancy, childhood, youth, manhood, old age—and therefore European progress exhibits five phases, designated as Credulity, Inquiry, Faith, Reason, Decrepitude. Draper's conclusion was that Europe, now in the fourth period, is hastening to a long period of decrepitude. The prospect did not dismay him; decrepitude is the culmination of Progress, and means the organisation of national intellect. That has already been achieved in China, and she owes to it her well-being and longevity. "Europe is inevitably hastening to become what China is. In her we may see what we shall be like when we are old."
Judged by any standard, Draper's work is much inferior to Buckle's, but both these books, utterly different though they were in both conception and treatment, performed a similar function. Each in its own way diffused the view which had originated in France, that civilisation is progression and, like nature, subject to general laws.