QUOTE : The hallmark of a psychopath is the failure to feel remorse. However, psychopaths demonstrate other significant behaviors. For example, psychopaths seem unable to read social cues. Hence, to pass as normal, they mimic others. They may be high-functioning intellectually and able to appreciate the difference between right and wrong, but they generally lack the ability to weigh risk or recognize quid pro quo. They rarely form a life plan. They also fail to respond normally to the threat of punishment and don’t grasp the emotional implications of their behavior.