Ideologies are administered by bureaucracies that control their meaning. They develop systems, they decide what is right- and what is wrong-thinking, who is faithful and who is a heretic; in short, the manipulation of ideologies becomes one of the most important means for the control of people through the control of their thoughts.

Erich Fromm (1900-1980) American psychoanalyst and social philosopher

May Man Prevail?, ch. 4 (1961)