“As civil rulers, not having their duty to the people duly before them, may attempt to tyrannize, and as the military forces which must be occasionally raised to defend our country, might pervert their power to the injury of their fellow citizens, the people are confirmed by the next article in their right to keep and bear their private arms.”

-Tenche Coxe, friend and correspondant of James Madison (father of the constitution)

” . . . but if circumstances should at any time oblige the government to form an army of any magnitude, that army can never be formidable to the liberties of the people, while there is a large body of citizens, little if at all inferior to them in discipline and use of arms, who stand ready to defend their rights . . . .”

-Alexander Hamilton, Federalist papers #29

via The Captain's Journal » Do We Have A Constitutional Right To Own An AR?.