Washington's Farewell
“Against the insidious wiles of foreign influence (I conjure you to believe me, fellow-citizens) the jealousy of a free people ought to be constantly awake since history and experience prove that foreign influence is one of the most baneful foes of republican government. But that jealousy to be useful must be impartial; else it becomes the instrument of the very influence to be avoided, instead of a defense against it.” US President George Washington's Farewell Address in 1796.
http://avalon.law.yale.edu/18th_century/washing.asp
Friends and Citizens: