Benjamin Franklin (1987). “Poor Richard's Almanack: Being the Choicest Morsels of Wisdom, Written During the Years of the Almanack's Publication”, p.8, Peter Pauper Press, Inc.
Benjamin Franklin, Henry Stueber (1838). “The Life and Essays of Dr. Benjamin Franklin: Carefully Collected from His Own Papers, Containing All His Miscellaneous Pieces”, p.182
Benjamin Franklin, William-Temple Franklin (1818). “Memoirs of the Life and Writings of (the Same), Continued to the Time of His Death by William Temple Franklin. - London, H. Colburn 1818”, p.253