In 1907 a young girl whom Mr. Clemens met
                            on the steamer Minnehaha called him
                            "grandpa," and he called her his
                            granddaughter. She was attending St.
                            Timothy's School, at Catonsville, Maryland,
                            and Mr. Clemens promised her to see her
                            graduate. He accordingly made the journey
                            from New York on June 10, 1909, and
                            delivered a short address.(*)

                       I don't know what to tell you girls to do. Mr. Martin has told
                       you everything you ought to do, and now I must give you
                       some don'ts.

                       There are three things which come to my mind which I
                       consider excellent advice:

                       First, girls, don't smoke -- that is, don't smoke to excess. I
                       am seventy-three and a half years old, and have been
                       smoking seventy-three of them. But I never smoke to excess
                       -- that is, I smoke in moderation, only one cigar at a time.

                       Second, don't drink -- that is, don't drink to excess.

                       Third, don't marry -- I mean, to excess.

                       Honesty is the best policy. That is an old proverb; but you
                       don't want ever to forget it in your journey through life.

What is Mark Twain's real advice?