Dr. Ivan Van Sertima, John Henrik Clarke “Dr. Ivan Van Sertima- 8 DVD video lectures: 8 DVDs, Best viewed on wifi on phones or tablets. iPads or Android (use google Play Book app to view. Gmail account required)”, Clemson Brown
Mark Twain, Michael Barry Frank, Robert Pack Browning, Lin Salamo, Frederick Anderson, Mark Twain (1980). “Mark Twain's Notebooks & Journals, Volume III: (1883-1891)”, p.424, Univ of California Press
An Essay on Criticism l. 525 (1711). The Oxford Dictionary of Proverbs notes, "Although known in Latin (humanum est errare, it is human to err) and in earlier English versions, this saying is generally quoted in Pope's words." The ODP cites "To offend is humaine, to repent diuine" (Henry Wotton, 1578) and "To erre is humane, to repent is divine" (James Howell, 1659).