Chesterton’s Orthodoxy, then, differs from Lewis’ Mere Christianity precisely in its attempt to ground Christianity not in the propositions of natural law, but in the elemental human and artistic experiences that we begin to neglect as we grow old. It is an attempt, dare I say, to defend and engender a faith that exudes wonder and astonishment at the mystery of reality. But Chesterton had told us as much at the beginning. Orthodoxy is not a “series of deductions,” as he says at the outset, but an attempt “in a vague and personal way, in a set of mental pictures, to state the philosophy in which [he has] come to believe.”
It is this approach that I would argue is perfectly suited for our post-modern age. Chesterton is the anti-Nietsche—a poet-philosopher who understands that unless truth exists, the enterprises of art and beauty are rendered meaningless. What’s more, his method is consistent with his argument: he artistically defends the existence of the truth and grounds Christianity in the pre-rational experience of story without jeopardizing truth’s existence or fallaciously opposing reason and emotion.
In sum, though Orthodoxy has only recently turned 100 years old, it remains the single most effective articulation of a Christianity that is intellectually robust, artistically engaged, spiritually sensitive, and historically grounded that I have yet read.