A letter from the Preface:
Hartford, Jan. 16, 1881
"My Dear Boy:
How can I advise another man wisely, out of such a capital as a life filled with mistakes? Advise him how to avoid the like? No for opportunities to make the same mistakes do not happen to any two men. Your own experiences may possibly teach you, but another man's can't. I do not know anything
for a person to do but just peg along, doing the things that offer, and regretting them the next day. It is my way and everybody's.
S. L. Clemens."