“To James Madison from Richard Barbour, 19 May 1785,” Founders Online, National Archives, https://founders.archives.gov/documents/Madison/01-08-02-0152. [Original source: The Papers of James Madison, vol. 8, 10 March 1784 – 28 March 1786, ed. Robert A. Rutland and William M. E. Rachal. Chicago: The University of Chicago Press, 1973, p. 282.]