The human imagination has seldom had before it an object so sublimely ordered as the medieval cosmos. If it has an aesthetic fault, it is perhaps, for us who have known romanticism, a shade too ordered. For all its vast spaces it might in the end afflict us with a kind of claustrophobia. Is there nowhere any vagueness? No undiscovered by-ways? No twilight? Can we never really get out of doors?

The Discarded Image: An Introduction to Medieval and Renaissance Literature (1964)