“To Thomas Jefferson from Diodati, 9 December 1785,” Founders Online, National Archives, https://founders.archives.gov/documents/Jefferson/01-09-02-0078. [Original source: The Papers of Thomas Jefferson, vol. 9, 1 November 1785 – 22 June 1786, ed. Julian P. Boyd. Princeton: Princeton University Press, 1954, p. 86.]