The second reason is that the power of crowds being on the increase, and this power being less and less counterbalanced, the extreme mobility of ideas,which we have seen to be a peculiarity of crowds, can manifest itself without let or hindrance.
Finally, the third reason is the recent development of the newspaper press, by whose agency the most contrary opinions are being continually brought before the attention of crowds. The suggestions that might result from each individual opinion are soon destroyed by suggestions of an opposite character. The consequence is that no opinion succeeds in becoming widespread, and that the existence of all of them is ephemeral. An opinion nowadays dies out before it has found a sufficiently wide acceptance to become general.