>Can anyone on the list tell me if the following quotation is really 
>attributable to our guy:  "A man who carries a cat by the tail learns 
>something he can learn in no other way."  Just curious.  It sounds like 
>Twain, but I've never encountered it before.  It may well be as spurious as 
>the golf quotation he never uttered.

That's not the exact wording, but it's genuine. I found it on Barb Schmidt's 
Twain Quotations site, attributed to Tom Sawyer Abroad:

" ... a person that started in to carry a cat home by the tail was getting 
knowledge that was always going to be useful to him, and warn't ever going 
to grow dim or doubtful."

-- Bob G.