Thomas Jefferson (2011). “The Papers of Thomas Jefferson, Retirement Series, Volume 7: 28 November 1813 to 30 September 1814”, p.248, Princeton University Press
"Christianity: the One, the Many: What Christianity Might Have Been and Could Still Become, Volume 1". Book by John F. Nash (p. 11), February 14, 2008.
Thomas Jefferson (1854). “The Writings of Thomas Jefferson: Being His Autobiography, Correspondence, Reports, Messages, Addresses, and Other Writings, Official and Private : Published by the Order of the Joint Committee of Congress on the Library, from the Original Manuscripts, Deposited in the Department of State”, p.139
Thomas Jefferson (2011). “Jefferson on Freedom: Wisdom, Advice, and Hints on Freedom, Democracy, and the American Way”, p.39, Skyhorse Publishing, Inc.