2 August 1939 Posted on August 1, 2012 by Staff Albert Einstein and Leó Szilárd wrote a letter to Franklin D. Roosevelt, urging him to develop a nuclear weapon. Famous Words of Inspiration..."One might think that the money value of an invention constitutes its reward to the man who loves his work. But... I continue to find my greatest pleasure, and so my reward, in the work that precedes what the world calls success." Thomas A. Edison — Click here for more from Thomas A. Edison Related posts: 23 August 1939 26 March 1939 2 August 1989 13 March 1996