No one can predict how far we shall be enabled by means of our limited intelligence to penetrate into the mysteries of a universe immeasurably vast and wonderful; nevertheless, each step in advance is certain to bring new blessings to humanity and new inspiration to greater endeavor.
Annual Report of the Board of Regents of the Smithsonian Institution, 1911 (Faraday Lecture) The Fundamental Properties of the Elements, (p. 215)