The general wearing away of opinions should not be too greatly deplored. That it is a symptom of decadence in the life of a people cannot be contested. It is certain that men of immense, of almost supernatural insight, that apostles, leaders of crowds--men, in a word, of genuine and strong convictions--exert a far greater force than men who deny, who criticise, or who are indifferent, but it must not be forgotten that, given the power possessed at present by crowds, were a single opinion to acquire sufficient prestige to enforce its general acceptance, it would soon be endowed with so tyrannical a strength that everything would have to bend before it, and the era of free discussion would be closed for a long time. Crowds are occasionally easy-going masters, as were Heliogabalus and Tiberius, but they are also violently capricious. A civilisation, when the moment has come for crowds to acquire a high hand over it, is at the mercy of too many chances to endure for long. Could anything postpone for a while the hour of its ruin, it would be precisely the extreme instability of the opinions of crowds and their growing indifference with respect to all general beliefs. BOOK III THE CLASSIFICATION AND DESCRIPTION OF THE DIFFERENT KINDS OF CROWDS CHAPTER I THE CLASSIFICATION OF CROWDS The general divisions of crowds--Their classification. 1. HETEROGENEOUS CROWDS. Different varieties of them--The influence of race--The spirit of the crowd is weak in proportion as the spirit of the race is strong--The spirit of the race represents the civilised state and the spirit of the crowd the barbarian state. 2. HOMOGENEOUS CROWDS. Their different varieties--Sects, castes, and classes. We have sketched in this work the general characteristics common to psychological crowds. It remains to point out the particular characteristics which accompany those of a general order in the different categories of collectivities, when they are transformed into a crowd under the influences of the proper exciting causes. We will, first of all, set forth in a few words a classification of crowds. Our starting-point will be the simple multitude. Its most inferior form is met with when the multitude is composed of individuals belonging to different races. In this case its only common bond of union is the will, more or less respected of a chief. The barbarians of very diverse origin who during several centuries invaded the Roman Empire, may be cited as a specimen of multitudes of this kind. On a higher level than these multitudes composed of different races are those which under certain influences have acquired common characteristics, and have ended by forming a single race. They present at times characteristics peculiar to crowds, but these characteristics are overruled to a greater or less extent by racial considerations.