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.157
Benjamin Franklin (2017). “The Complete Works of Benjamin Franklin: Letters and Papers on Electricity, Philosophical Subjects, General Politics, Moral Subjects & the Economy, American Subjects Before & During the Revolution”, p.812, Madison & Adams
James C. Humes, Benjamin Franklin (1995). “The wit and wisdom of Benjamin Franklin: a treasury of more than 900 quotations and anecdotes”, Harpercollins