Adam Smith’s Industrial Organization of Religion: Explaining the Medieval Church's Monopoly And its Breakdown in the Reformation

In ... the greater part of Europe during the tenth, eleventh, twelfth, and thirteenth centuries, and for some time both before and after that period, the constitution of the church of Rome may be considered as the most formidable combination that ever was formed against the authority and security of civil government, as well as against the liberty, reason, and happiness of mankind, which can flourish only where civil government is able to protect them. In that constitution the grossest delusions of superstition were supported in such a manner by the private interests of so great a number of people as put them out of all danger from any assault of human reason: because though human reason might perhaps have been able to unveil, even to the eyes of the common people, some of the delusions of superstition; it could never have dissolved the ties of private interest. Had this constitution been attacked by no other enemies but the feeble efforts of human reason, it must have endured forever. Adam Smith, Wealth of Nations (V.i.g.24:803-04).