So men come into the sort of personal and social life that Jesus represents. Apart from any theories, they value the life itself—its ideals of character, friendship, service, trust. If honesty allows, they propose to live that life. When a man has gone far enough in Christian experience, so that he comes up to his intellectual difficulties by such a road, he is likely to profit by a consideration of the reasons in favor of faith. He is in the attitude of saying: I have found great living in Christ. No argument for the Christian experience can be quite so convincing as the Christian experience itself. I am bound to have that life if I honestly can, and I will search to see whether there is any insuperable intellectual difficulty in the way of it.
II
One of the initial perplexities of faith concerns the sort of intellectual assurance which we have a right to expect. In a laboratory of physics, the investigator gathers facts, makes inductions as to their laws, and then verifies his findings. He uses a simplicity of procedure and gains a finality of result that makes all other knowledge seem relatively insecure. To be sure, the scientist may seek long for his truth and make many ineffectual guesses that prove false, but, in the end, he reaches a conclusion so demonstrable that every man of wit enough to investigate the subject must agree that it is so. How the Christian wishes for such certainty concerning God!
Before, however, any one surrenders confidence in God, because confessedly the affirmations of religious faith cannot be established by such methods as a physicist employs, there is ample reason for delay. We are certain that heat expands and cold contracts, and we can prove the fact and state its laws. But are we not also sure that it is wrong to lie and right to tell the truth? This conviction about truthfulness at least equals in theoretical certainty and in practical right to determine conduct, our confidence in heat's expanding power. This conviction about truthfulness does actually sway life more than does any single scientific truth that one can name. Let us then set ourselves to prove our moral confidence by such methods as the physical laboratory can supply—with yard sticks, and Troy weight scales, and test tubes, and meters! At once it is evident that if we are to hold only such truth as is amenable to the demonstration of a laboratory, we must bid farewell to every moral conviction that hitherto has influenced our lives. God, banished because the physicist cannot prove him, will have good company in exile!
Moreover, all our esthetic convictions will have to share that banishment. We know that some things are beautiful. The consensus of the race's judgment has not so much agreed to accept the new astronomy as it has agreed to think sunrise glorious and snow-capped mountains wonderful. Take from our lives our judgments on beauty, so that we may call no music marvelous, no poetry inspiring, no scenery sublime, and some of the most intimate and assured convictions we possess will have to go. A man who has seen the Matterhorn at dawn, when the first shaft of light reaches its rocky pinnacle and streams down in glory over the glaciers that cape its shoulders, will not disbelieve the splendor of the scene, though all the world beside unanimously should cry that it is not beautiful. But prove it by the methods of a laboratory? When the geologist has analyzed all the mountain's rocks, the chemist all its minerals; when the astronomer has traced the earth's orbit that brings on the dawn, and the physicist has counted and tabulated the rays of light that make the colors, our conviction of the scene's beauty will be as little explained or proved as is our confidence in God. It becomes clear that some convictions which we both do and must hold are not amenable to the sort of proof which a scientific laboratory furnishes.
Moreover, if we will have no truth beyond the reach of a physicist's demonstration, all our convictions in the realm of personal relationship will have to go. We know that friendship-love is the crown of every human fellowship. Father and son, mother and daughter, brother and sister, wife and husband—these relationships are in themselves bare branches wanting the foliage and fruit of friendship. Of no truth is man at his best more sure than he is that "Life is just our chance o' the price of learning love." But no laboratory ever can deal with such a truth, much less establish it. For this is the neglected insight, for the want of which our religious confidence is needlessly unstable: Every realm of reality has its own appropriate kind of proof, and a method of proof available in one realm is seldom, if ever, usable in another. That truthfulness is right is in a way provable, but methods proper to the moral realm must be allowed; that the Matterhorn is sublime is in a sense provable, but by methods which the esthetic realm permits; that love is the crown of life can be soundly established, but one must employ a method appropriate to personal relationships. If, obsessed by the procedure of a laboratory as the solitary path to knowledge, one will have no convictions which cannot meet its tests, then in good logic there must be a great emigration from his soul. All his convictions about morals and beauty, all his convictions about personal friendships and about God must leave together. He will have a depopulated spirit. No man could live on such terms for a single hour. The most essential and valuable equipment of our souls is in convictions which the demonstrations of a physicist can as little reach as an inch worm, clambering up the Himalayas, can measure the distance to the sun.
III
A man to whom the Christian life has come to be preeminently valuable, and who is asking whether it is intellectually justifiable, is set free, by such considerations as we just have noted, to seek assurance where religious assurance may properly be found. For one thing, he may find help by trying out the creed of no-God. Many a man is a wavering believer, makes little excursions into doubt and returns hesitant and unhappy, because he never has dared to see his doubts through to their logical conclusion and to face the world with God eliminated.
One may sense the general atmosphere of the world, under the no-God hypothesis, by saying, In all this universe there is no mind essentially greater than mine. The import of such a statement grows weightier the more one ponders it. All human minds are infinitesimal in knowledge; endless realities must lie beyond our reach; "our science is a drop, our ignorance a sea." Yet human knowledge is all that anywhere exists, if the no-God hypothesis is true. There is no knower who knows more, and the infinite reality beyond our grasp is not known by any mind at all. No one ever thought it or will think it through eternity. Then, let a man add, In all this universe there is no goodness essentially greater than mine. Human goodness is pitiably partial; it is but prophecy of what goodness ought to mean; "Man is a dwarf of himself," as Emerson said. But human goodness is all that anywhere exists, if the no-God hypothesis is true. There never will be any better goodness anywhere, and when the earth comes to its end in a solar catastrophe, there will be no goodness left at all. Certainly the hypothesis of no-God raises more questions than it easily can quell.
Indeed the Christian, long accused by unbelieving friends of gross credulity because he holds his creed, may well leave his defense and "go over the top" in an offensive charge. If it is a question of holding creeds, unbelief is a creed as certainly as belief is; it says, I believe that there is no God or that God cannot be known. If it is a question of credulity, the Christian suspects that of all the different kinds of credulousness which the world has seen, nothing ever has surpassed the capacity of modern sceptics to accept impossible beliefs. He who says, I believe that there is no God, nor anything which that name might reasonably connote, is saying, I believe that the fundamental reality everywhere is physical. Long ages ago atoms, electrons, "mobile cosmic ethers" began their mysterious organization, whose present issue is planetary orbits, rocks, organic life, and, highest point of all, the brain of man. Man's mind is but the moving shadow cast by the activity of brain. Man's character is the subtle fragrance of his nerves. Everywhere, if the no-God hypothesis be true, spirit is a result, physical energy the cause.