"George Hamilton Not Afraid of Skin Cancer, Says Women Don't Like Men Who Know They're Good Looking". Interview with Nicki Gostin, www.foxnews.com. December 14, 2011.
John Buchan (2016). “JOHN BUCHAN Ultimate Collection: Spy Classics, Thrillers, Adventure Novels & Short Stories, Including Historical Works and Essays (Illustrated): Scottish Poems, World War I Books & Mystery Novels like Thirty-Nine Steps, Greenmantle, Huntingtower, No Man’s Land, Prester John and many more”, p.1849, e-artnow
"'La logique et l'intuition dans la science mathématique et dans l'enseignement' ('Logic and intuition in the science of mathematics and in teaching')". Book by Henri Poincare, 1899.
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.45