To be sure, we may not leap from this general necessity of faith to the conclusion that therefore our religious beliefs are justified. Many men use faith in business and in social life who cannot find their way to convictions about God. But our desire to understand faith's meaning is quickened when we see how indispensable a place it holds, how tremendous an influence it wields, whether it be religiously applied or not. All sorts of human enterprise bear witness to its unescapable necessity. Haeckel, the biologist, describing science's method, says: "Scientific faith fills the gaps in our knowledge of natural laws with temporary hypotheses." Lincoln, the statesman, entreating the people, cries: "Let us have faith that right makes might and in that faith let us to the end dare to do our duty." Stevenson, the invalid, trying with fortitude to bear his trial, writes: "Whether on the first of January or the thirty-first of December, faith is a good word to end on." And the Master states the substance of religion in a single phrase: "Have faith in God" (Mark 11:22). Scientific procedure, social welfare, personal quality, religion—the applications of our subject are as wide as life. Vision and valor are the dynamic forces in all achievement, intellectual as well as moral, and as for man's spiritual values and satisfactions, "It is faith in something," as Oliver Wendell Holmes put it, "which makes life worth living."

II

One major reason for this necessary place of faith in our experience is clear. Life is an adventure and adventure always demands insight and daring. That "Chinese" Gordon, on his hazardous expedition into the Soudan, should be thrown back on undiscourageable faith in himself, in the justice of his cause, in the bravery of his men, and in God; that he should even speak of praying his boats up the Nile, seems to us natural; for some kind of faith is obviously necessary to any great adventure. But men often forget that all ordinary living is essentially adventurous and that by this fact the need of faith is woven into the texture of every human life. It is an amazing adventure to be born upon this wandering island in the sky and it is an adventure to leave it when death calls. To go to school, to make friends, to marry, to rear children, to face through life the swift changes of circumstance that no man can certainly predict an hour ahead, these are all adventures. Each new day is an hitherto unvisited country, which we enter, like Abraham leaving Ur for a strange land, "not knowing whither he went" (Heb. 11:8), and every New Year we begin a tour of exploration into a twelvemonth where no man's foot has ever walked before. If we all love tales of pioneers, it is because from the time we are weaned to the time we die, life is pioneering. Of course we cannot live by verifiable knowledge only. Imagine men, equipped with nothing but powers of logical demonstration, starting on such an enterprise as the title of Sebastian Cabot's joint stock company suggests: "Merchants Adventurers of England for the discovery of lands, territories, isles and seignories, unknown."

Indeed no knowledge of the sort that our scientific inductions can achieve ever will take from life this adventurous element. Scientific knowledge in these latter decades has grown incalculably; yet for all that, every child's life is a hazardous experiment, every boy choosing a calling takes his chances, every friendship is a risky exploration in the province of personality, and all devotion to moral causes is just as much a venturesome staking of life on insight and hope as it was when Garrison attacked slavery or Livingstone landed in Africa. To one who had acquired not only all extant but all possible knowledge, as truly as to any man who ever lived, life would be full of hazard still. He could not certainly know in advance the outcome of a single important decision of his life. He could not at any moment tell in what new, strange, challenging, or terrific situation the next hour might find him. With all his science, he must face each day, as Paul faced his journey to Rome, "not knowing the things that shall befall me there" (Acts 20:22).

The reason for this is obvious. Our systematized knowledge is the arrangement under laws of the experiences which we have already had. It furnishes invaluable aid in guiding the experiments and explorations which life continuously forces on us. In every enterprise, however, we must use not only legs to stand on, but tentacles as well with which to feel our way forward—intuitions, insights, hopes, unverified convictions, faith. We project our life forward as we build a cantilever bridge. Part of the structure is solidly bolted and thoroughly articulated in a system; but ever beyond this established portion we audaciously thrust out new beginnings in eager expectation that from the other side something will come to meet them. Without this no progress ever would be possible.

Every province of life illustrates this necessity of adventure. In science, the established body of facts and laws is only the civilized community of knowledge from whose frontiers new guesses and intuitions start. Says Sir Oliver Lodge about the great Newton: "He had an extraordinary faculty for guessing correctly, sometimes with no apparent data—as for instance, his intuition that the mean density of the earth was probably between five and six times that of water, while we now know it is really about five and one half." In personal character, our habits are basic, but our ideals in which, despite ourselves, we must believe, are pioneers that push out into new territory and call our habits after them to conquer the promised land. In social advance, some Edmund Burke, statesman of the first magnitude, basing his judgment on the established experience of the race, can call slavery an incurable evil and say that there is not the slightest hope that trade in slaves can be stopped; and yet within eighty-two years the race can feel its way forward to Lincoln's Emancipation Proclamation. As for daily business, adventurous daring is there the very nerve of enterprise. Says a modern newspaper man: "There are plenty of people to do the possible; you can hire them at forty dollars a month. The prizes are for those who perform the impossible. If a thing can be done, experience and skill can do it; if a thing cannot be done, only faith can do it." Great in human life is this adventurous element, and, therefore, great in human life is the necessity of faith. To chasten and discipline, to make reasonable and stable the faiths by which we live is a problem unsurpassed in importance for every man.

III

One result of special interest follows from this truth. It is commonly suspected that as mankind advances, the function of faith proportionately shrinks. It is even supposed that the place of faith in human life has sensibly diminished with our growing knowledge, and that Matthew Arnold told the truth:

"The sea of faith Was once, too, at the full, and round earth's shore Lay like the folds of a bright girdle furl'd. But now I only hear Its melancholy, long, withdrawing roar, Retreating, to the breath Of the night-wind, down the vast edges drear And naked shingles of the world."

Accordingly by custom we call the mediæval centuries the "Age of Faith." But even a cursory comparison between the mediæval people and ourselves reveals that among the many differences that distinguish us from them, none is more marked than the diversity and range of our faiths. One considers in surprise the things which they did not believe. That the world would ever grow much better, that social abuses like political tyranny and slavery could be radically changed, that man could ever master nature by his inventions until her mighty forces were his servants, that the whole race could be reached for Christ, that war could be abolished and human brotherhood in some fair degree established, that common men could be trusted with responsibility for their own government or with freedom to worship God according to the dictates of their own consciences—none of these things did the mediæval folk believe. One of the most distinguishing characteristics of the so-called "Age of Faith" was its lack of faith. It lived in a static world; it was poor in possibilities except in heaven; it pitiably lacked those most certain signs of vital faith, the open mind eager for new truth and the ardent, vigorous life seeking new conquests. In comparison with such an age our generation's faiths are rich and manifold. To call our time an "Age of Doubt" because of its free spirit of critical inquiry, is seriously to misunderstand its major drift. Bunyan's Pilgrim found Doubting Castle kept by Giant Despair and his wife Diffidence and in any Doubting Castle these two always dwell. But who, considering our generation's life as a whole, would call it diffident or desperate? It is rather robust and confident; its social faiths, at least, are unprecedented in their sweep and certainty. Even the Great War is the occasion of such organized faith in a federated and fraternal world as mankind has never entertained before.