William James 
The Varieties of Religious Experience [EPUB ebook] 

The question, What are the religious propensities? and the question, What is their philosophic significance? are two entirely different orders of question from the logical point of view; and, as a failure to recognize this fact distinctly may breed confusion, I wish to insist upon the point a little before we enter into the documents and materials to which I have referred.
In recent books on logic, distinction is made between two orders of inquiry concerning anything. First, what is the nature of it? how did it come about? what is its constitution, origin, and history? And second, What is its importance, meaning, or significance, now that it is once here? The answer to the one question is given in an existential judgment or proposition. The answer to the other is a proposition of value, what the Germans call a Werthurtheil, or what we may, if we like, denominate a spiritual judgment. Neither judgment can be deduced immediately from the other. They proceed from diverse intellectual preoccupations, and the mind combines them only by making them first separately, and then adding them together.