"In His Best Letter In A Long Time, Bill Gross Explains Why Stocks Are Going To Be Horrible Investments" by Joe Weisenthal, www.businessinsider.com. July 31, 2012.
Address of Senator John F. Kennedy accepting the Democratic Party Nomination for the Presidency of the United States at Memorial Coliseum in Los Angeles, California, www.jfklibrary.org. July 15, 1960.
Henry David Thoreau (2014). “Citizen Thoreau: Walden, Civil Disobedience, Life Without Principle, Slavery in Massachusetts, A Plea for Captain John Brown”, p.22, Graphic Arts Books