"Ideas are a complete system within us, resembling a natural kingdom, a sort of flora, of which the iconography will one day be outlined by some man who will perhaps be accounted a madman. "Yes, within us and without, everything testifies to the livingness of those exquisite creations, which I compare with flowers in obedience to some unutterable revelation of their true nature! "Their being produced as the final cause of man is, after all, not more amazing than the production of perfume and color in a plant. Perfumes _are_ ideas, perhaps! "When we consider the line where flesh ends and the nail begins contains the invisible and inexplicable mystery of the constant transformation of a fluid into horn, we must confess that nothing is impossible in the marvelous modifications of human tissue. "And are there not in our inner nature phenomena of weight and motion comparable to those of physical nature? Suspense, to choose an example vividly familiar to everybody, is painful only as a result of the law in virtue of which the weight of a body is multiplied by its velocity. The weight of the feeling produced by suspense increases by the constant addition of past pain to the pain of the moment. "And then, to what, unless it be to the electric fluid, are we to attribute the magic by which the Will enthrones itself so imperiously in the eye to demolish obstacles at the behest of genius, thunders in the voice, or filters, in spite of dissimulation, through the human frame? The current of that sovereign fluid, which, in obedience to the high pressure of thought or of feeling, flows in a torrent or is reduced to a mere thread, and collects to flash in lightnings, is the occult agent to which are due the evil or the beneficent efforts of Art and Passion--intonation of voice, whether harsh or suave, terrible, lascivious, horrifying or seductive by turns, thrilling the heart, the nerves, or the brain at our will; the marvels of the touch, the instrument of the mental transfusions of a myriad artists, whose creative fingers are able, after passionate study, to reproduce the forms of nature; or, again, the infinite gradations of the eye from dull inertia to the emission of the most terrifying gleams. "By this system God is bereft of none of His rights. Mind, as a form of matter, has brought me a new conviction of His greatness." After hearing him discourse thus, after receiving into my soul his look like a ray of light, it was difficult not to be dazzled by his conviction and carried away by his arguments. The Mind appeared to me as a purely physical power, surrounded by its innumerable progeny. It was a new conception of humanity under a new form.