On Arms

The people cannot delegate to government the power to do anything which would be unlawful for them to do themselves. ... whenever the Legislators endeavor to take away, and destroy the Property of the People, or to reduce them to Slavery under Arbitrary Power, they put themselves into a state of War with the People, who are thereupon absolved from any farther Obedience, and are left to the common Refuge, which God hath provided for all Men, against Force and Violence. Whensoever therefore the Legislative shall transgress this fundamental Rule of Society, and either by Ambition, Fear, Folly or Corruption, endeavor to grasp themselves, or put into the hands of any other an Absolute Power over the Lives, Liberties, and Estates of the People; By this breach of Trust they forfeit the Power the People had put into their hands, for quite contrary ends, and it devolves to the People, who have a Right to resume their original Liberty.

--John Locke.

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.

--Tench Coxe

The supposed quietude of a good man allures the ruffian; while on the other hand arms, like laws, discourage and keep the invader and plunderer in awe, and preserve order in the world as property. The same balance would be preserved were all the world destitute of arms, for all would be alike; but since some will not, others dare not lay them aside … Horrid mischief would ensue were the law-abiding deprived of the use of them.

--Thomas Paine

John Stark would approve.