Among the psychological characteristics of crowds there are some that they may present in common with isolated individuals, and others, on the contrary, which are absolutely peculiar to them and are only to be met with in collectivities. It is these special characteristics that we shall study, first of all, in order to show their importance.
The most striking peculiarity presented by a psychological crowd is the following: Whoever be the individuals that compose it, however like or unlike be their mode of life, their occupations, their character, or their intelligence, the fact that they have been transformed into a crowd puts them in possession of a sort of collective mind which makes them feel, think, and act in a manner quite different from that in which each individual of them would feel, think, and act were he in a state of isolation. There are certain ideas and feelings which do not come into being, or do not transform themselves into acts except in the case of individuals forming a crowd. The psychological crowd is a provisional being formed of heterogeneous elements, which for a moment are combined, exactly as the cells which constitute a living body form by their reunion a new being which displays characteristics very different from those possessed by each of the cells singly.
Contrary to an opinion which one is astonished to find coming from the pen of so acute a philosopher as Herbert Spencer, in the aggregate which constitutes a crowd there is in no sort a summing-up of or an average struck between its elements. What really takes place is a combination followed by the creation of new characteristics, just as in chemistry certain elements, when brought into contact—bases and acids, for example—combine to form a new body possessing properties quite different from those of the bodies that have served to form it.
It is easy to prove how much the individual forming part of a crowd differs from the isolated individual, but it is less easy to discover the causes of this difference.
To obtain at any rate a glimpse of them it is necessary in the first place to call to mind the truth established by modern psychology, that unconscious phenomena play an altogether preponderating part not only in organic life, but also in the operations of the intelligence. The conscious life of the mind is of small importance in comparison with its unconscious life. The most subtle analyst, the most acute observer, is scarcely successful in discovering more than a very small number of the unconscious motives that determine his conduct. Our conscious acts are the outcome of an unconscious substratum created in the mind in the main by hereditary influences. This substratum consists of the innumerable common characteristics handed down from generation to generation, which constitute the genius of a race. Behind the avowed causes of our acts there undoubtedly lie secret causes that we do not avow, but behind these secret causes there are many others more secret still which we ourselves ignore. The greater part of our daily actions are the result of hidden motives which escape our observation.
It is more especially with respect to those unconscious elements which constitute the genius of a race that all the individuals belonging to it resemble each other, while it is principally in respect to the conscious elements of their character—the fruit of education, and yet more of exceptional hereditary conditions—that they differ from each other. Men the most unlike in the matter of their intelligence possess instincts, passions, and feelings that are very similar. In the case of every thing that belongs to the realm of sentiment—religion, politics, morality, the affections and antipathies, &c.—the most eminent men seldom surpass the standard of the most ordinary individuals. From the intellectual point of view an abyss may exist between a great mathematician and his boot maker, but from the point of view of character the difference is most often slight or non-existent.
It is precisely these general qualities of character, governed by forces of which we are unconscious, and possessed by the majority of the normal individuals of a race in much the same degree—it is precisely these qualities, I say, that in crowds become common property. In the collective mind the intellectual aptitudes of the individuals, and in consequence their individuality, are weakened. The heterogeneous is swamped by the homogeneous, and the unconscious qualities obtain the upper hand.
This very fact that crowds possess in common ordinary qualities explains why they can never accomplish acts demanding a high degree of intelligence. The decisions affecting matters of general interest come to by an assembly of men of distinction, but specialists in different walks of life, are not sensibly superior to the decisions that would be adopted by a gathering of imbeciles. The truth is, they can only bring to bear in common on the work in hand those mediocre qualities which are the birthright of every average individual. In crowds it is stupidity and not mother-wit that is accumulated. It is not all the world, as is so often repeated, that has more wit than Voltaire, but assuredly Voltaire that has more wit than all the world, if by "all the world" crowds are to be understood.
If the individuals of a crowd confined themselves to putting in common the ordinary qualities of which each of them has his share, there would merely result the striking of an average, and not, as we have said is actually the case, the creation of new characteristics. How is it that these new characteristics are created? This is what we are now to investigate.
Different causes determine the appearance of these characteristics peculiar to crowds, and not possessed by isolated individuals. The first is that the individual forming part of a crowd acquires, solely from numerical considerations, a sentiment of invincible power which allows him to yield to instincts which, had he been alone, he would perforce have kept under restraint. He will be the less disposed to check himself from the consideration that, a crowd being anonymous, and in consequence irresponsible, the sentiment of responsibility which always controls individuals disappears entirely.