The problem of dealing with the criminal class seems insolvable, and it undoubtedly is with present methods. It has never been attempted on a fully scientific basis, with due regard to the protection of society and to the interests of the criminal. It is purely an economic and educational problem, and must rest upon the same principles that govern in any successful industry, or in education, and that we recognize in the conduct of life. That little progress has been made is due to public indifference to a vital question and to the action of sentimentalists, who, in their philanthropic zeal; fancy that a radical reform can come without radical discipline. We are largely wasting our energies in petty contrivances instead of striking at the root of the evil. What do we mean by the criminal class? It is necessary to define this with some precision, in order to discuss intelligently the means of destroying this class. A criminal is one who violates a statute law, or, as we say, commits a crime. The human law takes cognizance of crime and not of sin. But all men who commit crime are not necessarily in the criminal class. Speaking technically, we put in that class those whose sole occupation is crime, who live by it as a profession, and who have no other permanent industry. They prey upon society. They are by their acts at war upon it, and are outlaws.