Thomas Edison (1847–1931) American inventor and businessman
Quoted by Theodore Dreiser in A Photographic Talk with Edison http://books.google.com/books?id=ZrIYCWaZCjwC&q=%22I+never+did+anything+worth+doing+by+accident%22+%22nor+did+any+of+my+inventions+come+indirectly+through+accident+except+the+phonograph+No+when+I+have+fully+decided+that+a+result+is+worth+getting+I+go+about+it+and+make+trial+after+trial+until+it+comes%22&pg=PA118#v=onepage, Success magazine (February 1898). <br class="br">1800s