When a man, before innocent, commits crime, he passes, by a sudden transition, into a new world. The significance of all objects around him is changed; the laws of association in his own mind are changed; a viper is born in his breast which stings and goads him. Sounds that he never heard before ring in his ears; a violated conscience turns avenger and scourger;--the foe is within him. Were it merely an external enemy, assaulting the criminal from without, perhaps he might be fled from, resisted, bribed, or would at last remit his inflictions through very weariness of tormenting. But not so with the consciousness of wrong.... It will not sleep, nor tire, nor relent.