"Then he saw also that it matters little what profession, whether of religion or irreligion, a man may make, provided only he follows it out with charitable inconsistency, and without insisting on it to the bitter end. It is in the uncompromisingness with which dogma is held, and not in the dogma or want of dogma that the danger lies. [...]
"Having then once introduced an element of inconsistency into his system, he was far too consistent not to be inconsistent consistently."
The Way Of All Flesh by Samuel Butler, Chapter 69.