Everett Dean Martin, The Behavior of Crowds

Everett Dean Martin was an American minister, writer, journalist, instructor, lecturer, social psychologist, social philosopher, and an advocate of adult education.
In The Behavior of Crowds, his first nationally reviewed book, he posed what he saw as the dilemma of the modern age: a technological information revolution that made it possible, in the absence of an adequate educational system, to influence ignorant men and women with propaganda and half-truths. Unscrupulous demagogues, corrupt politicians, manipulative advertisers, and revolutionary ideologues found ready-made audiences when they appealed to the baser (a subconscious urge, behavior, or intuition directed by primeval, animalistic, self-serving, and/or ignoble motivations) instincts.