In response to this thread I looked up  a bunch of stuff in "Elias Hicks: Quaker Liberal" about Hicks and reason/rationalism, his influences, and how that influenced his theology, because I mentioned his use of reason being criticized in his life and was asked for sources. Here are selected excerpts . I'm only posting one of them in that thread. 

Some about…

I recently got my own copy of "Elias Hicks: Quaker Liberal," a book I borrowed from my university's library but did not finish before graduating and returning the book.  On page 186, it says that the last page of Hicks' home journal finally answered a question both Friends and non-Friends frequently asked:  what is required of a Christian?  His answer has 3 parts.

1. a real belief in God and Christ, as one undivided essence, known and believed in, inwardly…