Power has three forms - force, authority and opinion. All the evolution of nations and of societies is fundamentally an ascension on the scale of these, from the first to the last. First came the state of violence, rising slowly out of its pure form in the savage tribes and groups. Then comes the rule of authority, begotten of force. And all rends to, or is at, the sway of opinion, this word meaning, of course, «popular will», «democracy».
Alexander Search (Fernando Pessoa)