“The prison population consists of heterogeneous elements; but, taking only those who are usually described as 'the criminals' proper, and of whom we have heard so much lately from Lombroso and his followers, what struck me most as regards them was that the prisons, which are considered as preventive of anti-social deeds, are exactly the institutions for breeding them. Every one knows that absence of education, dislike of regular work, physical incapability of sustained effort, misdirected love of adventure, gambling propensities, absence of energy, an untrained will, and carelessness about the happiness of others are the causes which bring this class of people before the courts. Now I was deeply impressed during my imprisonment by the fact that it is exactly these defects of human nature--each one of them--which the prison breeds in its inmates; and it is bound to breed them because it is a prison, and will breed them so long as it exists. ”