I don't think you should support the death penalty to seek revenge. I don't think that's right. I think the reason to support the death penalty is because it saves other people's lives.
Why seeketh thou revenge, O man! with what purpose is it that thou pursuest it? Thinkest thou to pain thine adversary by it? Know that thou thyself feelest its greatest torments.
To hell, allegiance! vows, to the blackest devil!
Conscience, and grace, to the profoundest pit!
I dare damnation: To this point I stand,--
That both the worlds I give to negligence,
Let come what comes; only I'll be reveng'd.
Cowardice is impotence worse than violence. The coward desires revenge but being afraid to die, he looks to others, maybe to the government of the day, to do the work of defense for him. A coward is less than a man. He does not deserve to be a member of a society of men and women.
Teller contended, not implausibly, that hydrogen bombs keep the peace, or at least prevent thermonuclear war, because the consequences of warfare between nuclear powers are now too dangerous. We haven't had a nuclear war yet, have we? But all such arguments assume that the nuclear-armed nations are and always will be, without exception, rational actors, and that bouts of anger and revenge and madness will never overtake their leaders (or military and secret police officers in charge of nuclear weapons). In the century of Hitler and Stalin, this seems ingenuous.
My good hoe as it bites the ground revenges my wrongs, and I have less lust to bite my enemies. In the smoothing the rough hillocks, I smooth my temper.
For it must be noted, that men must either be caressed or else annihilated; they will revenge themselves for small injuries, but cannot do so for great ones; the injury therefore that we do to a man must be such that we need not fear his vengeance.