So when evolution, through the genius of Darwin, came into popular discussion and acceptance, it was feared that chance had been enthroned in the universe, and that religion was destined to extinction. But in the progress of the evolution theory, as its advocates have split into various camps, the sense of the mystery in the origins and laws of the organic world has deepened, and many can see in nature the evidence of a diviner wisdom than before. Dr. Schäfer in his presidential address before the British Association, in 1912, spoke in one sense of the continuity of life, giving to it what seemed like a mechanical or materialistic interpretation. The following presidential address, by Sir Oliver Lodge, spoke of the continuity of life in another sense, a continuation of life after death; and argued that mechanism is inadequate to explain the facts of life, and asserted that "genuine religion has its roots deep down in the heart of humanity, and in the reality of things." At each stage of advance in science, says a recent writer, "this joyful overestimate of the possibilities of mechanism becomes a marked feature of contemporary thought. As each piece of knowledge becomes assimilated, it is seen that the old problems are in their essence unaltered; the poet, the seer and the mystic again come to their own, and, in new language, and from a higher ground of vantage, proclaim their message to mankind."[89] 89: "Science and the Human Mind," by W. C. D. Whetham and C. D. Whetham, 1912, pp. 218, 219. The horizons of mystery are not at the confines of telescopic vision, or at the far boundaries of the material universe, but are in the objects which are most familiar, in the meanest flower that blows, in the minutest seed and in the smallest atom. As the poet finds in the flower thoughts too deep for tears, so the scientist sees in it problems too vast and far-reaching for human comprehension. He can see in the very atom minute solar systems, and in electricity a mystery lying at the very heart of material things. It is the paradox of science that the more the world is understood, the deeper does the mystery of its existence become. With the enlarging boundaries of knowledge there is a growing appreciation of mysteries perhaps insoluble which lie beyond. Science, in fact, only deals with the connections of things, and the processes by which they came to be what they are, but not with the ultimate origins and the final ends. The deeper study of nature will lead men, we may believe, in the future as it has done in the past, to the reverent attitude of a Kepler, a Newton, a Clerk-Maxwell, and a Lord Kelvin. They will see in the bird's feather and the butterfly's wing, in the constitution of the cell and the atom, in the stellar universe and the mind of man, evidences of creative Power and Purpose; and, turning from the study of nature, will exclaim, "How wonderful are Thy works; in wisdom hast Thou made them all!" III