Benjamin Franklin, Edmund Sears Morgan (2006). “Not Your Usual Founding Father: Selected Readings from Benjamin Franklin”, p.257, Yale University Press
"Theological-Political Treatise". Book by Baruch Spinoza, Ch. 20, That In a Free State Every Man May Think What He Likes, and Say What He Thinks, 1670.
Buffalo Bill (1879). “The Life of Hon. William F. Cody, Known as Buffalo Bill, the Famous Hunter, Scout, and Guide: An Autobiography”, p.125, U of Nebraska Press
James Madison, Gaillard Hunt, James Brown Scott (1999). “The Debates in the Federal Convention of 1787: Which Framed the Constitution of the United States of America”, p.690, The Lawbook Exchange, Ltd.