The Mystery of Public Opinion (Audio Lecture)

"To discover therefore, not only the nature of this public mind, but how to protect ourselves against the ravages which it may cause. These would appear to be worthwhile procedures, essential to the living of a good life. In general, we can say that public opinion divides into two general parts: First, world opinion. The enormous mass motions of human thinking. And second, local public opinion, being composed of areas, districts, neighborhoods, families, and these more intimate associations with which we are most familiar."
~Manly P. Hall