Thomas Clarkson (1787). “An Essay on the Slavery and Commerce of the Human Species: Particularly the African, Translated from a Latin Dissertation, which was Honoured with the First Prize, in the University of Cambridge, for the Year 1785, with Additions. [One Line from Livy]”, p.52
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