What constitutes a crowd from the psychological point of view — A numerically strong agglomeration of individuals does not suffice to form a crowd — Special characteristics of psychological crowds — The turning in a fixed direction of the ideas and sentiments of individuals composing such a crowd, and the disappearance of their personality — The crowd is always dominated by considerations of which it is unconscious — The disappearance of brain activity and the predominance of medullar activity — The lowering of the intelligence and the complete transformation of the sentiments — The transformed sentiments may be better or worse than those of the individuals of which the crowd is composed — A crowd is as easily heroic as criminal.
