Søren Kierkegaard was a Christian author who was against applying the ideas of the Scientific Enlightenment to Christianity. He lived in Denmark from 1813 to 1855. His works were written to the single individual who might be interested in reading them.
The mischievous sectism of Protestantism will also cease, and with it alienation between father and son, brother and sister. For as soon as the pure teaching and love of Christ, as they really are, are comprehended and consistently practised, we shall realise our humanity as great and free, and cease to attach undue importance to mere outward form.