This is the thrilling romance of orthodoxy. People have fallen into a foolish habit of speaking of orthodoxy as something heavy, humdrum, and safe. There was never anything so perilous or so exciting as orthodoxy. It was sanity: and to be same is more dramatic than to be mad. It was the equilibrium of a man behind madly rushing horses, seeming to stoop this way and that, yet in every attitude having gained the grace of statuary and the accuracy of arithmetic. The Church in its early days went fierce and fast with any warhorse; yet it is utterly unhistoric to say that she merely went mad along one idea, like a vulgar fanaticism. She swerved to left and right, so exactly as to avoid numerous obstacles… To have fallen in with any one of the fads from Gnosticism to Christian Science would indeed have been obvious and tame. But to have avoided them all has been one whirling adventure; and in my vision the heavenly chariot flies thundering through the ages, the dull heresies sprawling and prostrate, the wild truth reeling but erect.
G.K. Chesterton, Orthodoxy