Enrico Ferri,
Criminal Sociology
“ To cite a few details of criminal psychology, it may be stated that of the two physiological conditions of crime, moral insensibility and improvidence, occasional crime is especially due to the latter, and inborn and habitual crime to the former. With the born criminal it is, above all, the lack or the weakness of moral sense which fails to withstand crime, whereas with the occasional criminal the moral sense is almost normal, but inability to realise beforehand the consequences of his act causes him to yield to external influences. ”
