“[To Thomas Jefferson from Percey, 20 August 1787],” Founders Online, National Archives, https://founders.archives.gov/documents/Jefferson/01-12-02-0052. [Original source: The Papers of Thomas Jefferson, vol. 12, 7 August 1787 – 31 March 1788, ed. Julian P. Boyd. Princeton: Princeton University Press, 1955, p. 47.]