The seemingly endless debates on dogma, and the intolerance of Christians among themselves, led many to seek refuge in a purely spiritual religion. Also, excessive emphasis on correct doctrine…[gave rise to] the spiritualist movement of the seventeenth and eighteenth centuries [and] attracted both cultured people who had little use for narrow-minded dogmatism, and others of little or no formal education who found in the movement an opportunity for expressing themselves.

Julio Gonzalez, (A History of Christianity, Vol. 2, 196, emphasis added)