Where any of the doctrines of a religion are unable to survive the tests of reason, examination, factuality, and evidence, they hide away in a part of the mind where the tests cannot get at them. This is called "resting on faith." It is a way of defending them from certain defeat. Instead of permeating the whole outlook, they are compartmentalized.

-- Notebooks Category 17: The Religious Urge > Chapter 4: Problems of Organized Religion > # 157