The savage was controlled by appearances, by impressions; he was mentally weak, mentally indolent, and his mind pursued the path of least resistance. Things were to him as they appeared to be. He was a natural believer in the supernatural, and, finding himself beset by dangers and evils, he sought in many ways the aid of unseen powers. His children followed his example, and for many ages, in many lands, millions and millions of human beings, many of them the kindest and the best, asked for supernatural help. Countless altars and temples have been built, and the supernatural has been worshiped with sacrifice and song, with self-denial, ceremony, thankfulness and prayer.
During all these ages, the brain of man was being slowly and painfully developed. Gradually mind came to the assistance of muscle, and thought became the friend of labor. Man has advanced just in the proportion that he has mingled thought with his work, just in the proportion that he has succeeded in getting his head and hands into partnership. All this was the result of experience.
Nature, generous and heartless, extravagant and miserly as she is, is our mother and our only teacher, and she is also the deceiver of men. Above her we cannot rise, below her we cannot fall. In her we find the seed and soil of all that is good, of all that is evil. Nature originates, nourishes, preserves and destroys.
Good deeds bear fruit, and in the fruit are seeds that in their turn bear fruit and seeds. Great thoughts are never lost, and words of kindness do not perish from the earth.
Every brain is a field where nature sows the seeds of thought, and the crop depends upon the soil.
Every flower that gives its fragrance to the wandering air leaves its influence on the soul of man. The wheel and swoop of the winged creatures of the air suggest the flowing lines of subtle art. The roar and murmur of the restless sea, the cataract's solemn chant, the thunder's voice, the happy babble of the brook, the whispering leaves, the thrilling notes of mating birds, the sighing winds, taught man to pour his heart in song and gave a voice to grief and hope, to love and death.
In all that is, in mountain range and billowed plain, in winding stream and desert sand, in cloud and star, in snow and rain, in calm and storm, in night and day, in woods and vales, in all the colors of divided light, in all there is of growth and life, decay and death, in all that flies and floats and swims, in all that moves, in all the forms and qualities of things, man found the seeds and symbols of his thoughts; and all that man has wrought becomes a part of nature's self, forming the lives of those to be. The marbles of the Greeks, like strains of music, suggest the perfect, and teach the melody of life. The great poems, paintings, inventions, theories and philosophies, enlarge and mould the mind of man. All that is is natural. All is naturally produced. Beyond the horizon of the natural man cannot go.
Yet, for many ages, man in all directions has relied upon, and sincerely believed in, the existence of the supernatural. He did not believe in the uniformity of nature; he had no conception of cause and effect, of the indestructibility of force.
In medicine he believed in charms, magic, amulets, and incantations. It never occurred to the savage that diseases were natural.
In chemistry he sought for the elixir of life, for the philosopher's stone, and for some way of changing the baser metals into gold.