Further, beneath this rationality there is in the madman a profound belief in himself. Most of us regard with respect those who trust their own judgment more than we find ourselves able to trust ours. But not the most confident of them all can equal the unswerving confidence of a madman. Sane people never wholly believe in themselves. They are liable to be influenced by the opinion of others, and are willing to yield to the consensus of opinion of past or present thinkers. The lunatic cares nothing for the views of others. He believes in himself against the world, with a terrific grip of conviction and a faith that nothing can shake. Mr. Chesterton applies his attack upon rationality to many subjects, with singular ingenuity. In the question of marriage and divorce, for instance, the modern school which would break loose from the ancient bonds can present their case with an apparently unassailable show of rationality. But his reply to them and to all other rationalists is that life is not rational and consistent but paradoxical and contradictory. To make life rational you have to leave out so many elements as to make it shrink from a big world to a little one, which may be complete, but can never be much of a world. Its conception of God may be a complete conception, but its God is not much of a God. But the world of human nature is a vast world, and the God of Christianity is an Infinite God. The huge mysteries of life and death, of love and sacrifice, of the wine of Cana and the Cross of Calvary--these outwit all logic and pass all understanding. So for sane men there comes in a higher authority. You may call it common sense, or mysticism, or faith, as you please. It is the extra element by virtue of which all sane thinking and all religious life are rendered possible. It is the secret spring of vitality alike in human nature and in Christian faith.