By the sympathy of your human hearts for sin, ye shall scent out all the places--whether in church, bed-chamber, street, field, or forest--where crime has been committed, and shall exult to behold the whole earth one stain of guilt, one mighty blood-spot. Far more than this! It shall be yours to penetrate, in every bosom, the deep mystery of sin, the fountain of all wicked arts, and which inexhaustibly supplies more evil impulses than human power--than my power at its utmost!--can make manifest in deeds. And now, my children, look upon each other."