“But still try, for who knows what is possible…”
Michael Faraday (1791–1867) English scientist
As quoted in The Life and Letters of Faraday (1870) Vol. II, edited by Henry Bence Jones, p. 483; also engraved above the doorways of the Pfahler Hall of Science at Ursinus College in Collegeville, Pennsylvania (see photo http://www.flickr.com/photos/monyca/17917765/in/pool-ursinus/).