But do not all these miracles [the steam engine, the electric light, the telephone, the phonograph, the radio, bacteriology, anesthesiology, psychophysiology] pale when compared to the most astonishing and disturbing one of all, that one which seems finally to endow man himself with the divine power of creation: the power to give physical form to the insubstantial image that vanishes as soon as it is perceived, leaving no shadow in the mirror, no ripple on the surface of the water? (1900)