James Monroe

"How prone all human institutions have been to decay; how subject the best-formed and most wisely organized governments have been to lose their check and totally dissolve; how difficult it has been for mankind, in all ages and countries, to preserve their dearest rights and best privileges, impelled as it were by an irresistible fate of despotism."

" …The occasion has been judged proper for asserting, as a principle in which the rights and interests of the United States are involved, that the American continents, by the free and independent condition which they have assumed and maintain, are henceforth not to be considered as subjects for future colonization by any European powers….we should consider any attempt on their part to extend their system to any portion of this hemisphere as dangerous to our peace and safety"