"In the ethical sense, propaganda bears the same relation to education as to business or politics. It may be abused. It may be used to over-advertise an institution and to create in the public mind artificial values. There can be no absolute guarantee against its misuse."

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The invisible government tends to be concentrated in the hands of the few because of the expense of manipulating the social machinery which controls the opinions and habits of the masses. To advertise on a scale which will reach fifty million persons is expensive. To reach and persuade the group leaders who dictate the public's thoughts and actions is likewise expensive.

— Edward Bernays