""Romanism And Rationalism As Opposed To Pure Christianity"" is a book written by John Cairns in 1863. The book is a critical analysis of the two major ideologies that were prevalent during that time- Romanism and Rationalism- and how they were opposed to the true teachings of Christianity. Cairns argues that Romanism, which is the belief in the authority of the Roman Catholic Church, and Rationalism, which is the belief in the power of human reason,...