“In other words, has Christianity really a principle of its own, which, however capable of historical evolution, yet remains unchanged in essence, so that the Christianity of to-day may be measured against the faith of the first disciples and awarded a rank essentially the same?”

– Rudolf Otto: ‘The Idea of the Holy, An Inquiry into the Non-Rational Factor in the Idea of the Divine and its Relation to the Rational’, Oxford University Press, 1958