Those runners gather impetus as they run. Ages afterwards they still speak as if something had just happened. They have not lost the speed and momentum of messengers; they have hardly lost, as it were, the wild eyes of witnesses. In the Catholic Church, which is the cohort of the message, there are still those headlong acts of holiness that speak of something rapid and recent; a self-sacrifice that startles the world like a suicide. But it is not a suicide; it is not pessimistic; it is still as optimistic as St. Francis of the flowers and birds. It is newer in spirit than the newest schools of thought; and it is almost certainly on the eve of new triumphs. For these men serve a mother who seems to grow more beautiful as new generations rise up and call her blessed. We might sometimes fancy that the Church grows younger as the world grows old.
For this is the last proof of the miracle; that something so supernatural should have become so natural. I mean that anything so unique when seen from the outside should only seem universal when seen from the inside. I have not minimised the scale of the miracle, as some of our milder theologians think it wise to do. Rather have I deliberately dwelt on that incredible interruption, as a blow that broke the very backbone of history. I have great sympathy with the monotheists, the Moslems, or the Jews, to whom it seems a blasphemy; a blasphemy that might shake the world. But it did not shake the world; it steadied the world. That fact, the more we consider it, will seem more solid and more strange. I think it a piece of plain justice to all the unbelievers to insist upon the audacity of the act of faith that is demanded of them. I willingly and warmly agree that it is, in itself, a suggestion at which we might expect even the brain of the believer to reel, when he realised his own belief. But the brain of the believer does not reel; it is the brains of the unbelievers that reel. We can see their brains reeling on every side and into every extravagance of ethics and psychology; into pessimism and the denial of life; into pragmatism and the denial of logic; seeking their omens in nightmares and their canons in contradictions; shrieking for fear at the far-off sight of things beyond good and evil, or whispering of strange stars where two and two make five. Meanwhile this solitary thing that seems at first so outrageous in outline remains solid and sane in substance. It remains the moderator of all these manias; rescuing reason from the Pragmatists exactly as it rescued laughter from the Puritans. I repeat that I have deliberately emphasised its intrinsically defiant and dogmatic character. The mystery is how anything so startling should have remained defiant and dogmatic and yet become perfectly normal and natural. I have admitted freely that, considering the incident in itself, a man who says he is God may be classed with a man who says he is glass. But the man who says he is glass is not a glazier making windows for all the world. He does not remain for after ages as a shining and crystalline figure, in whose light everything is as clear as crystal.