And having discovered that opportunism does fail, I have been induced to look at it more largely, and in consequence to see that it must fail. I perceive that it is far more practical to begin at the beginning and discuss theories. I see that the men who killed each other about the orthodoxy of the Homoousion were far more sensible than the people who are quarrelling about the Education Act. For the Christian dogmatists were trying to establish a reign of holiness, and trying to get defined, first of all, what was really holy. But our modern educationists are trying to bring about a religious liberty without attempting to settle what is religion or what is liberty. If the old priests forced a statement on mankind, at least they previously took some trouble to make it lucid. It has been left for the modern mobs of Anglicans and Nonconformists to persecute for a doctrine without even stating it.
For these reasons, and for many more, I for one have come to believe in going back to fundamentals. Such is the general idea of this book. I wish to deal with my most distinguished contemporaries, not personally or in a merely literary manner, but in relation to the real body of doctrine which they teach. I am not concerned with Mr. Rudyard Kipling as a vivid artist or a vigorous personality; I am concerned with him as a Heretic — that is to say, a man whose view of things has the hardihood to differ from mine. I am not concerned with Mr. Bernard Shaw as one of the most brilliant and one of the most honest men alive; I am concerned with him as a Heretic — that is to say, a man whose philosophy is quite solid, quite coherent, and quite wrong. I revert to the doctrinal methods of the thirteenth century, inspired by the general hope of getting something done.
Suppose that a great commotion arises in the street about something, let us say a lamp-post, which many influential persons desire to pull down. A grey-clad monk, who is the spirit of the Middle Ages, is approached upon the matter, and begins to say, in the arid manner of the Schoolmen, “Let us first of all consider, my brethren, the value of Light. If Light be in itself good—” At this point he is somewhat excusably knocked down. All the people make a rush for the lamp-post, the lamp-post is down in ten minutes, and they go about congratulating each other on their unmediaeval practicality. But as things go on they do not work out so easily. Some people have pulled the lamp-post down because they wanted the electric light; some because they wanted old iron; some because they wanted darkness, because their deeds were evil. Some thought it not enough of a lamp-post, some too much; some acted because they wanted to smash municipal machinery; some because they wanted to smash something. And there is war in the night, no man knowing whom he strikes. So, gradually and inevitably, to-day, to-morrow, or the next day, there comes back the conviction that the monk was right after all, and that all depends on what is the philosophy of Light. Only what we might have discussed under the gas-lamp, we now must discuss in the dark.
G.K. Chesterton, Heretics (1905)