In pointing out the significance of the study, the researchers commented that narcissistic individuals tend to feel superior to others, fantasize about personal successes, and believe they deserve special treatment. When they feel humiliated, they often lash out aggressively or even violently. Knowledge about the origins of narcissism is important for designing interventions to curtail narcissistic development. They believe this study demonstrated that narcissism in children is cultivated by parental overvaluation as the parents believe their child to be more special and more entitled than others. In contrast, high levels of self-esteem in children is cultivated by parental warmth, as parents express their affection and appreciation toward their child. These findings show that narcissism is partly rooted in early socialization experiences, and suggest that parent-training interventions can help curtail narcissistic development and reduce its costs for society.