Albert Bigelow Paine,
The Boys' Life of Mark Twain — Chapter 13
(1916)
“ How could the easy-going, dreamy, unpractical man whom the world knew as Mark Twain ever have persisted against discouragement like that to acquire the vast, the absolute, limitless store of information necessary to Mississippi piloting? The answer is that he loved the river, the picturesqueness and poetry of a steamboat, the ease and glory of a pilot's life; and then, in spite of his own later claims to the contrary, Samuel Clemens, boy and man, in the work suited to his tastes and gifts, was the most industrious of persons. ”
