“To some extent, cohesive social forces are at work in any culture or subculture with shared worldview and shared doctrines. In itself this counts neither for nor against the truth of the worldview or the doctrines. But it does mean that things that seem ‘obvious’ or ‘plain’ or ‘commonsensical’ to members of a social group need not be at all obvious to those outside.” – Vern Poythress, Understanding Dispensationalists.
As a side note, this book was explained to me by a DTS graduate as a book in which they learned more about dispensationalism than their whole student career in attendance at DTS, ironically enough.