After the cessation of European wars the United States stood singularly aloof from the Old World, yet in the affairs of South America they did not cease to take a lively interest. The successive revolutions by which the provinces of the Rio de la Plata, Chili, Peru, Colombia, Brazil, and Mexico threw off the yoke of Spain woke a thrill in the people of the United States, for they thought they saw the events of their own revolution repeated in the exploits of San Martin and Bolivar. To the imagination of Henry Clay, this was a sublime spectacle--"eighteen millions of people struggling to burst their chains and be free." He would have had the United States recognize these sister republics and join hands with them in forming an American system independent of Europe. And when the Administration hesitated, he exclaimed: "We look too much abroad. Let us break these commercial and political fetters; let us no longer watch the nod of any European politician; let us become real and true Americans, and place ourselves at the head of the American system." The conception of an American system did not originate in the ardent mind of Henry Clay. It was as old as the Union itself. Foreign encroachment had been feared from the very birth of the nation. "You are afraid of being made the tool of the powers of Europe," said Richard Oswald to John Adams while peace negotiations were pending at Paris. "Indeed I am," rejoined Adams. "What powers?" asked Oswald. "All of them," said Adams; "it is obvious that all the powers of Europe will be continually manoeuvring with us to work us into their real or imaginary balances of power.... But I think that it ought to be our rule not to meddle." Washington's refusal to enter into an alliance with France and his firm insistence upon neutrality were inspired by this same fear. Jefferson's negotiations for the purchase of New Orleans were motivated by the fear that France, once in possession of the mouth of the Mississippi, would threaten the isolation of the United States and drive us into the arms of Great Britain. "Jefferson is an American," Adet once said, with rare insight, "and by that title, it is impossible for him to be sincerely our friend. _An American is the born enemy of European peoples._"