Jonathan Swift (1752). “The works of D. Jonathan Swift ...: To which is prefixed, the doctor's life, with remarks on his writings, from the Earl of Orrery and others, not to be found in any former edition of his works.Dublin printed”, p.281
Dr. Robert C. Worstell, James Breckenridge Jones, Napoleon Hill (2015). “Think and Grow Rich, Updated and Complete - With If You Can Count to Four...”, p.34, Lulu.com
Theodore Roosevelt (2015). “Theodore Roosevelt on Bravery: Lessons from the Most Courageous Leader of the Twentieth Century”, p.93, Skyhorse Publishing, Inc.