Prisons, which are considered as preventive of anti-social deeds, are exactly the institutions for breeding them… 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… 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.