In isolated societies creeds can be preserved. It is where people of different traditions, outlook and creeds mingle freely and exchange ideas that religious beliefs begin to be eroded. No one changes his beliefs without some instigation, some novel experience, some modification of the customary course of things, and in a closed society people believe what all their fellows obviously believe. Only when they are brought into contact with persons whom they respect holding different views do they begin to look at their inherited beliefs critically.
Religion / beliefs
Quotes, by G.a. Wells