Thomas A. Edison: [after the latest attempt to find a filament that will work in the electric light] Well, we failed again. That's the net result of nine thousand experiments.
Michael Simon: Too bad, Tom. We know the work you have done. We are as sorry as you are that you didn't get results.
Thomas A. Edison: Results? Man, I got a lot of results. I know nine thousand things now that won't work.
Thomas A. Edison: [speaking to young Jimmy Price] Funny thing about mistakes- they don't have to be *permanent*. I had to find that out *myself* when I was a boy.
Thomas A. Edison: [to the Gold Exchange clerk, who once told him he'd have to wait until next Christmas to see Mr. Taggart, before Edison fixed the gold ticker and got an appointment with Taggart:] Merry Christmas.