Having studied the most general principles of the collective mental life, as exemplified in the two extreme forms of the unorganised crowd and the highly organised army, having briefly noted the principal classes of groups that enjoy a collective mental life, and having examined the nature and function of the group spirit in the organisation of the group mind, we may now take up the study of the most interesting, most complex and most important kind of group mind, namely the mind of a nation-state[42].

Many attempts have been made to define more exactly the popular notion of a nation. The word has sometimes been applied to large groups of primitive folk that show evidence of close racial affinity and similarity of customs, such as the Iroquois tribes of North America, or the Hun invaders of medieval Europe. In popular usage the word is more commonly restricted to the great nation-states of modern times. It must be recognised that, since human societies of present and past times present every conceivable variety of composition and structure, it is impracticable to lay down any strict definition and to classify populations as falling definitely within or outside the class.

But, though we may not hope to lay down a definition which shall clearly mark off the nation from all other human groups, we may usefully define the nation-state or nation in the most highly developed form that it has yet attained, and recognise that various peoples partake of the nature of, or approach the type of, the nation in so far as they exhibit something of its essential character.

It is perhaps hardly necessary to point out that it is only in the nation-state, or nation in the fullest sense of the word, that the state becomes identical with the nation, and that this identification has only been achieved in modern history by the growth among a few peoples of representative institutions and the democratic spirit.

In the work mentioned above Prof. Ramsay Muir writes—“What do we mean by a Nation? It is obviously not the same thing as a race, and not the same thing as a state. It may be provisionally defined as a body of people who feel themselves to be naturally linked together by certain affinities which are so strong and real for them that they can live happily together, are dissatisfied when disunited, and cannot tolerate subjection to peoples who do not share these ties[43].” The provisional definition has the merit of recognising that nationhood is essentially a mental condition and must be defined in psychological terms. The author goes on to inquire—“What are the ties of affinity which are necessary to constitute a nation?” He then considers the following conditions: (1) “occupation of a defined geographical area,” (2) “unity of race,” (3) “unity of language,” (4) “unity of religion,” (5) “common subjection, during a long stretch of time, to a firm and systematic government,” (6) “community of economic interest, with the similarity of occupations and outlook which it brings,” (7) “the possession of a common tradition, a memory of sufferings endured and victories won in common, expressed in song and legend, in the dear names of great personalities that seem to embody in themselves the character and ideals of the nation, in the names also of sacred places wherein the national memory is enshrined.” Of the last he says that it is “the most potent of all nation-moulding factors, the one indispensable factor”; thus showing his sense of the essentially psychological nature of nationhood. But of all the other six ‘factors’ enumerated, he shows that they are unessential. After reaching this negative conclusion, that nationhood cannot be defined by any one of these marks or factors, he writes: “Nationality, then, is an elusive idea, difficult to define. It cannot be tested or analysed by formulæ, such as German professors love. Least of all must it be interpreted by the brutal and childish doctrine of racialism. Its essence is a sentiment, and in the last resort we can only say that a nation is a nation because its members passionately and unanimously believe it to be so. But they can only believe it to be so if there exist among them real and strong affinities; if they are not divided by any artificially maintained separation between the mixed races from which they are sprung; if they share a common basis of fundamental moral ideas, such as are most easily implanted by common religious beliefs; if they can glory in a common inheritance of tradition; and their nationality will be all the stronger if to these sources of unity they add a common language and literature and a common body of law. If these ties, or the majority of them, are lacking, the assertion of nationality cannot be made good. For, even if it be for the moment shared by the whole people, as soon as they begin to try to enjoy the freedom and unity which they claim in the name of nationality, they will fall asunder, and their freedom will be their ruin.” In the last sentence the author clearly shows that the conclusion at which he seemed to have arrived, namely that “a nation is a nation because its members passionately and unanimously believe it to be so,” is untenable. At the present time there are populations claiming the rights of nationality just upon this fallacious ground; a fact which illustrates the importance of achieving some satisfactory definition of nationhood. Indeed at the present moment, when Europe is being remoulded by the Paris Conference, the need for clear notions and some working definition of nationhood has acquired a most urgent importance. For, as our author remarks, “we say, loosely, that every nation has a right to freedom and unity,” and the principle of “self-determination of nations” has become almost universally accepted as a kind of moral axiom of political justice; and this axiom is being applied to determine the political boundaries of the world now and for all time. Yet how can we hope to make a proper use of this principle, if we cannot define a nation, if a modern historian, who has devoted himself to the study of nationality, finds himself compelled in the year 1917 to give up the attempt to define the meaning of the term nation? For that is the issue of Prof. Ramsay Muir’s interesting discussion. “We have not attained,” he confesses, “in this discussion any very clear definition of nationality, or any very satisfactory test of the validity of the claims put forward for national freedom. We are not to base the doctrine of nationality upon abstract rights. We must recognise that there is no single infallible test of what constitutes a nation, unless it be the peoples’ own conviction of their nationhood, and even this may be mistaken or based upon inadequate grounds[44].” And the dire consequences of this failure are made clear on the following page—“There seems no escape from the conclusion that nationhood must mainly determine itself by conflict. That conclusion appears to be the moral of the history of the national idea in Europe.” Which is as much as to say that, when any population declares itself to be a nation and claims the rights of nationhood, the Statesmen of the Paris Conference are to reply—“We do not know whether your claim is well-founded; for the historians and political philosophers cannot tell us the meaning of the word ‘nation.’ Go to and fight, and, if you survive, we shall recognise the ‘fait accompli’ and hail you a Nation.”

I have dwelt at some length on this perplexity of the historian, grappling with the task of defining nationhood, because it illustrates so well a fact on which I wish to insist—namely, that it is not sufficient for the historian and the political philosopher to be willing to recognise the mental factors in the phenomena with which he deals. It is necessary to recognise that these factors are of overwhelming importance, and that they cannot be satisfactorily dealt with by aid of the obscure and confused psychological concepts of popular thought and speech. We must recognise these political problems for what they truly are—namely, psychological through and through, and only to be attacked with some hope of success if we call to our aid all that psychological science can give us. This conclusion cannot fail to be unpalatable to very many workers in this field; for it implies that equipment for such work demands some additional years of preparatory study. But, it may fairly be asked, if the medical man must devote six years to the intensive study of the human body, before he is permitted to practise upon it, and even then without any scientific knowledge of the human mind, should not he who would practise upon the body politic, in which not merely the bodies but the minds of men interact in the most subtle and complex fashion, prepare himself for his exalted task by an even more extended course of study?

Prof. Ramsay Muir has the merit of recognising the essentially psychological nature of his problem; for his provisional definition (cited above) is wholly psychological, and he tells us that the essence of nationality is a sentiment; but he reveals the inadequacy of his psychological equipment by telling us in the same paragraph that its essence is a belief, the belief that they are a nation, passionately and unanimously held by the members of some group. If we look again at the list of seven proposed marks of nationhood, we shall see that they are rather of the nature of conditions favourable to the growth of nationhood; and, as we shall find, this list may be considerably enlarged. He comes nearest to the truth perhaps when he says “its essence is a sentiment.” But he does not attempt to tell us what is the nature of this sentiment, nor even what is its object.

We may imagine a group of people of considerable magnitude, say the Mormons, or the Doukhobors, the Swedenborgians, or the Christian Scientists, withdrawing themselves to some defined territory, in order to form themselves into a nation; then, although each of the seven conditions enumerated by Prof. Ramsay Muir might be realised, and even though the community possessed the two conditions described by him as the essence of nationality—namely, a strong sentiment (presumably one of loyalty to the group) and a passionate belief in its nationality—it would, in the absence of other essential conditions, lamentably fall short of being a nation and would suffer the fate indicated; namely “as soon as they begin to try to enjoy the freedom and unity which they claim in the name of nationality, they will fall asunder, and their freedom will be their ruin[45].”

What, then, is the essential condition for lack of which any such people would fall short of nationhood? What is the factor which has escaped the analysis of Prof. Ramsay Muir? The answer must be—organisation; not material organisation, but such mental organisation as will render the group capable of effective group life, of collective deliberation and collective volition. The answer to the riddle of the definition of nationhood is to be found in the conception of the group mind. A nation, we must say, is a people or population enjoying some degree of political independence and possessed of a national mind and character, and therefore capable of national deliberation and national volition. In this and the succeeding chapters we have to examine the nature of such national mind and character, to give fuller meaning to these vague popular terms, and to study the way in which various conditions of national life contribute to their development.

Nationhood is, then, essentially a psychological conception. To investigate the nature of national mind and character and to examine the conditions that render possible the formation of the national mind and tend to consolidate national character, these are the crowning tasks of psychology.