Marcus Tullius Cicero:
There exists a law, not written down anywhere but inborn in our hearts; a law which comes to us not by training or custom or reading but by derivation and absorption and adoption from nature itself; a law which has come to us not from theory but from practice, not by instruction but by natural intuition. I refer to the law which lays it down that, if our lives are endangered by plots or violence or armed robbers or enemies, any and every method of protecting ourselves is morally right.
Samuel Adams:
If ever a time should come, when vain and aspiring men shall possess the highest seats in Government, our country will stand in need of its experienced patriots to prevent its ruin.
John Adams:
Resistance to sudden violence, for the preservation not only of my person, my limbs and life, but of my property, is an indisputable right of nature which I have never surrendered to the public by the compact of society, and which perhaps, I could not surrender if I would. Nor is there anything in the common law of England inconsistent with that right.