There are in America from fifteen to twenty million religious fundamentalists who are dedicated to doctrines incompatible with democracy in that they insist on their prerogatives as first principles. An even larger group feebly follows the trail of fire breathed by those fundamentalists. They are the most dangerous minority we have because they categorically eschew the reasoned judgments of the majority. Democracy properly allows them the right to worship as they choose. It should never have conceded them the right to establish schools. Education is not a function of any church — or even of a city — or a state; it is a function of all mankind.

p. 324 - Generation of Vipers (1942)