I have often read this quote as being by Mark Twain. I'm convinced, however, that's not the case. Barb Schmidt would have included it on _www.twainquotes_ (http://www.twainquotes) . And it's not there. Or if it's there, I'm blind and haven't seen it. Should anyone have any convincing evidence otherwise, I'm pretty sure it will surface here on the List. Best, Roger Durrett Charlotte, NC In a message dated 2/13/2011 4:46:45 P.M. Eastern Standard Time, [log in to unmask] writes: I have seen this attributed to Mark Twain: "Age is an issue of mind over matter. If you don't mind, it doesn't matter." My questions are: Did MT originate this quote? Or, at the very least, did he at some time say or write it? If not, is the source known?