or.... I regret not the things I've done, but those I did not do.
I remember reading this in a short story in highschool. It is quite a popular quote, in searching the Internet though most people have no idea where it is from or even worse think it was originally said by a character in the movie Empire Records, or by George Lucas, or various other modern day people. One place attributed it to Mark Twain, but I could find no one to confirm that with a title of the work.
Anyone have any ideas?