Frederick Temple, Rowland Williams, Baden Powell, Henry Bristow Wilson, Charles Wycliffe Goodwin (2013). “Essays and Reviews”, p.373, Cambridge University Press
John Adams (1794). “A Defence of the Constitutions of Government of the United States of America: Against the Attack of M. Turgot in His Letter to Dr. Price, Dated the Twenty-second Day of March, 1778”, p.385