These advice are full of humor and satire and because oh this the text is dominated by irony.
Bibliographie
1. http://www.biography.com/articles/Mark-Twain-9512564 2. Robert Fulford's column about irony (http://www.robertfulford.com/Irony.html) 3. Justin Rivera "Advice to Youth" by Mark Twain: Satire (http://justinrivera16.blogspot.com/2008/08/advice-to-youth-by-mark-twain-satiremn.html)
-----------------------
[1] http://www.biography.com/articles/Mark-Twain-9512564
[2] Robert Fulford's column about irony (http://www.robertfulford.com/Irony.html)
[3] Justin Rivera "Advice to Youth" by Mark Twain: Satire (http://justinrivera16.blogspot.com/2008/08/advice-to-youth-by-mark-twain-satiremn.html)