"Einstein Sees Lack In Applying Science; Man Has "Not Yet Learned To Make Sensible Use Of It," He Asserts. Cites War And Machinery He Urges California Students To Seek To Put Knowledge To Good Of The Race", www.nytimes.com. February 17, 1931.
George W. Bush's speech at a Naturalization Ceremony at the DAR Administration Building in Washington, D.C., georgewbush-whitehouse.archives.gov. March 27, 2006.