Propaganda is of no use to the politician unless he has something to say which the public, consciously or unconsciously, wants to hear. - Edward Bernays

No serious sociologist any longer believes that the voice of the people expresses any divine or specially wise and lofty idea. The voice of the people expresses the mind of the people, and that mind is made up for it by the group leaders in whom it believes and by those persons who understand the manipulation of public opinion. It is composed of inherited prejudices and symbols and clichés and verbal formulas supplied to them by the leaders.

The three main elements of public relations are practically as old as society: informing people, persuading people, or integrating people with people. Of course, the means and methods of accomplishing these ends have changed as society has changed.

While, under the handicraft of small-unit system of production was that typical a century ago, demand created the supply, today supply must actively seek to create its corresponding demand. A single factory, potentially capable of supplying a whole continent with its particular product, cannot afford to wait until the public asks for its product; it must maintain constant touch, through advertising and propaganda, with the vast public in order to assure itself the continuous demand which alone will make its costly plant profitable. This entails a vastly more complex system of distribution than formerly.