Psychopathy is currently a condition that arouses great interest among psychiatrists because of its signiicant involvement in the forensic ield. The authors illustrate the course over time of the concept of psychopathy, starting from the deinition of "moral insanity" of Prichard. The historical journey allows to illustrate the diferent positions that the various European schools of psychiatry have had toward psychopathy, until modern nosographic classiication systems such as Diagnostic and Statistical Manual of Mental Disorders (DSM). Special atention is paid to the "core" of psychopathy: the alteration of the moral sense, and through the illustration of moral development is provided a reading of morality in the psychopath and the reasons for its impairment. A clinical and critical examination of psychopathy assessment scales is proposed, with the aim to broaden the horizons of assessment, also to individuals who do not show violent behavior, but with compromised moral sense. Lastly, authors propose an interpretation of the social aspects of psychopathy that goes beyond the assessment of the psychopath conined in jails, with several highlighted aspects of psychopathy that contribute to social success in work, relationships, and career and that can contribute to the success of the psychopath.