"The essence of justice is mercy. Making a child suffer for wrong-doing is merciful to the child. There is no mercy in letting the child have its own will, plunging headlong to destruction with the bits in its mouth. There is no mercy to society nor to the criminal if the wrong is not repressed and the right vindicated. We injure the culprit who comes up to take his proper doom at the bar of justice, if we do not make him feel that he has done a wrong thing. We may deliver his body from the prison, but not at the expense of justice nor to his own injury."