If I am asked, as a purely intellectual question, why I believe in Christianity, I can only answer, “For the same reason that an intelligent agnostic disbelieves in Christianity.” I believe in it quite rationally upon the evidence. But the evidence in my case, as in that of the intelligent agnostic, is not really in this or that alleged demonstration; it is in an enormous accumulation of small but unanimous facts. The secularist is not to be blamed because his objections to Christianity are miscellaneous and even scrappy; it is precisely such scrappy evidence that does convince the mind.
The perfect happiness of men on the earth (if it ever comes) will not be a flat and solid thing, like the satisfaction of animals. It will be an exact and perilous balance; like that of a desperate romance. Man must have just enough faith in himself to have adventures, and just enough doubt of himself to enjoy them.
To the orthodox there must always be a case for revolution; for in the hearts of men God has been put under the feet of Satan. In the upper world hell once rebelled against heaven. But in this world heaven is rebelling against hell. For the orthodox there can always be a revolution; for a revolution is a restoration.
We have a general view of existence, whether we like it or not; it alters or, to speak more accurately, it creates and involves everything we say or do, whether we like it or not. If we regard the Cosmos as a dream, we regard the Fiscal Question as a dream. If we regard the Cosmos as a joke, we regard St. Paul’s Cathedral as a joke. If everything is bad, then we must believe (if it be possible) that beer is bad; if everything be good, we are forced to the rather fantastic conclusion that scientific philanthropy is good. Every man in the street must hold a metaphysical system, and hold it firmly. The possibility is that he may have held it so firmly and so long as to have forgotten all about its existence.
There are no rationalists. We all believe fairy-tales, and live in them. Some, with a sumptuous literary turn, believe in the existence of the lady clothed with the sun. Some, with a more rustic, elvish instinct… believe merely in the impossible sun itself. Some hold the undemonstrable dogma of the existence of God; some the equally undemonstrable dogma of the existence of the man next door.