But when the example of the leader is not at hand and the herd must think for itself, it does so by means of clichés, pat words or images which stand for a whole group of ideas or experiences. Not many years ago, it was only necessary to tag a political candidate with the word interests to stampede millions of people into voting against him, because anything associated with "the interests" seemed necessary corrupt. Recently the word Bolshevik has performed a similar service for persons who wished to frighten the public away from a line of action.
By playing upon a old cliché, or manipulating a new one, the propagandist can sometimes swing a whole mass group emotions.
Edward Bernays