Vaclav Havel, John Keane (2016). “The Power of the Powerless: Citizens Against the State in Central Eastern Europe: Citizens Against the State in Central Eastern Europe”, p.89, Routledge
Address at a banquet given by the Board of Trade and Chamber of Commerce of Washington, D.C., on May 08, 1909. "Presidential Addresses and State Papers of William Howard Taft". Volume 1, chapter 7, p. 82, 1910.