I might stray pretty far, if I were to continue these illustrations of social hygiene which will be the true solution of the problem and the supreme systematic, daily humane, and bloodless remedy against the disease of criminality. However, we have not the simple faith that in the near or far future of humanity crimes can ever be wholly eradicated. Even Socialism, which looks forward to a fundamental transformation of future society on the basis of brotherhood and social justice, cannot elevate itself to the absolute and naive faith that criminality, insanity, and suicide can ever fully disappear from the earth. But it is our firm conviction that the endemic form of criminality, insanity, and suicide will disappear, and that nothing will remain of them but rare sporadic forms caused by lesion or telluric and other influences. Since we have made the great discovery that malaria, which weighs upon so many parts in Italy, is dependent for its transmission on a certain mosquito, we have acquired the control of malarial therapeutics and are enabled to protect individuals and families effectively against malaria. But aside from this function of protecting people, there must be a social prevention, and since those malarial insects can live only in swampy districts, it is necessary to bring to those unreclaimed lands the blessing of the hoe and plow, in order to remove the cause and do away with the effects. The same problem confronts us in criminology. In the society of the future we shall undertake this work of social hygiene, and thereby we shall remove the epidemic forms of criminality. And nine-tenths of the crimes will then disappear, so that nothing will remain of them but exceptional cases. There will remain, for instance, such cases as that of the bricklayer which I mentioned, because there may always be accidents, no matter what may be the form of social organization, and nervous disorders may thus appear in certain individuals. But you can see that these would be exceptional cases of criminality, which will be easily cured under the direction of science, that will be the supreme and beneficent manager of institutes for the segregation of those who will be unfit for social intercourse. The problem of criminality will thus be solved as far as possible, because the gradual transformation of society will eliminate the swamps in which the miasma of crime may form and breed.