Abraham Lincoln (2008). “Speeches and Letters of Abraham Lincoln(1832-1865) (Volume 1 of 2 ) (EasyRead Super Large 24pt Edition)”, p.255, ReadHowYouWant.com
Charles Hodge (1855). “What is Presbyterianism?: An Address Delivered Before the Presbyterian Historical Society at Their Anniversary Meeting in Philadelphia, on Tuesday Evening, May 1, 1855”, p.16