"Advice to a Young Tradesman, Written by an Old One" by Benjamin Franklin and D. Hall, printed in George Fisher "The American Instructor: or Young Man’s Best Companion" (pp. 375-377), founders.archives.gov. July 21, 1748.
Jeff Shaara, Michael Shaara (2012). “The Civil War Trilogy 3-Book Boxset (Gods and Generals, The Killer Angels, and The Last Full Measure)”, p.421, Ballantine Books