In considering this problem of the mystery of living things, I have had a good deal of trouble in trying to make my inborn idealism go hand in hand with my inborn naturalism; but I am not certain that there is any real break or contradiction between them, only a surface one, and that deeper down the strata still unite them. Life seems beyond the capacity of inorganic nature to produce; and yet here is life in its myriad forms, here is the body and mind of man, and here is the world of inanimate matter out of which all living beings arise, and into which they sooner or later return; and we must either introduce a new principle to account for it all, or else hold to the idea that what is is natural--a legitimate outcome of the universal laws and processes that have been operating through all time. This last is the point of view of the present chapter,--the point of view of naturalism; not strictly the scientific view which aims to explain all life phenomena in terms of exact experimental science, but the larger, freer view of the open-air naturalist and literary philosopher. I cannot get rid of, or hold in abeyance, my inevitable idealism, if I would; neither can I do violence to my equally inevitable naturalism, but may I not hope to make the face of my naturalism beam with the light of the ideal--the light that never was in the physico-chemical order, and never can be there? II The naturalist cannot get away from the natural order, and he sees man, and all other forms of life, as an integral part of it--the order, which in inert matter is automatic and fateful, and which in living matter is prophetic and indeterminate; the course of one down the geologic ages, seeking only a mechanical repose, being marked by collisions and disruptions; the other in its course down the biologic ages seeking a vital and unstable repose, being marked by pain, failure, carnage, extinction, and ceaseless struggle with the physical order upon which it depends. Man has taken his chances in the clash of blind matter, and in the warfare of living forms. He has been the pet of no god, the favorite of no power on earth or in heaven. He is one of the fruits of the great cosmic tree, and is subject to the same hazards and failures as the fruit of all other trees. The frosts may nip him in the bud, the storms beat him down, foes of earth and air prey upon him, and hostile influences from all sides impede or mar him. The very forces that uphold him and furnish him his armory of tools and of power, will destroy him the moment he is off his guard. He is like the trainer of wild beasts who, at his peril, for one instant relaxes his mastery over them. Gravity, electricity, fire, flood, hurricane, will crush or consume him if his hand is unsteady or his wits tardy. Nature has dealt with him upon the same terms as with all other forms of life. She has shown him no favor. The same elements--the same water, air, lime, iron,