Quotes from book
Propaganda

Propaganda, an influential book written by Edward L. Bernays in 1928, incorporated the literature from social science and psychological manipulation into an examination of the techniques of public communication. Bernays wrote the book in response to the success of some of his earlier works such as Crystallizing Public Opinion and A Public Relations Counsel . Propaganda explored the psychology behind manipulating masses and the ability to use symbolic action and propaganda to influence politics, effect social change, and lobby for gender and racial equality. Walter Lippman was Bernays' unacknowledged American mentor and his work The Phantom Public greatly influenced the ideas expressed in Propaganda a year later. The work propelled Bernays into media historians' view of him as the "father of public relations."

Source: Propaganda (1928), p. 37 <!-- the first two sentences are very widely cited -->
Context: The conscious and intelligent manipulation of the organized habits and opinions of the masses is an important element in democratic society. Those who manipulate this unseen mechanism of society constitute an invisible government which is the true ruling power of our country. We are governed, our minds are molded, our tastes formed, our ideas suggested, largely by men we have never heard of. This is a logical result of the way in which our democratic society is organized. Vast numbers of human beings must cooperate in this manner if they are to live together as a smoothly functioning society.

“Propaganda is the executive arm of the invisible government.”
Source: Propaganda (1928), p. 48

Page 75 as quoted in Historical Archaeologies of Capitalism edited by Mark P. Leone, Jocelyn E. Knauf, p.40
Propaganda (1928)