Logic may be viewed, perhaps, as a machine which is designed, at best, to be such that when we feed into it certain data and turn the logic crank, we inevitably get certain conclusions out the other end. Logic is designed to give inevitably true results starting from known true–or assumed-to-be-true–premises. Logic is a wonderful tool when we want only logical conclusions. We should not reject such a machine merely because it is not equipped to handle all of reality. The scientist who commits himself to use a logic machine is doing wisely, qua scientist, for use on data of science. But if he feeds into that machine convictions that there is no God, or ignores God because He is not in his corpus of data, and then draws from his logic the conclusion that God does not exist, his conclusion is irrelevant. Logic is a tool; it should not be made into a religion.
Do you see this lantern? cried Syme in a terrible voice.’Do you see the cross carved on it, and the flame inside? You did not make it. You did not light it. Better men than you, men who could believe and obey, twisted the entrails of iron and preserved the legend of fire. There is not a street you walk on, there is not a thread you wear, that was not made as this lantern was, by denying your philosophy of dirt and rats. You can make nothing. You can only destroy. You will destroy mankind, you will destroy the world. Let that suffice you. Yet this one old Christian lantern you shall not destroy. It shall go where your empire of apes will never have the wit to find it.