"...a man who is used arms in self-defense..."

"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. When weapons reduce them to silence, the laws no longer expect one to wait their pronouncements. For people who decide to wait for these will have to wait for justice, too--and meanwhile they must suffer injustice first. Indeed, even the wisdom of a law itself, by sort of tacit implication, permits self-defense, because it is not actually forbidden to kill; what it does, instead, is to forbid the bearing of a weapon with the intention to kill. When, therefore, inquiry passes on the mere question of the weapon and starts to consider the motive, a man who is used arms in self-defense is not regard is having carried with a homicidal aim."

- Marcus Tulius Cicero, (106-53 BC). In a prepared speech for the trial of T. Annius Milo in 52 B.C.