Peter is at the conventional stage of moral development.
The conventional stage of moral development involves internalizing the norms and moral values of society by obeying the law and authority figures. Peter seems to be at the fourth stage of Kohlberg's theory moral development, known as "Maintaining Social Order". In this stage, individuals make moral judgements and decisions in order to obey and comply with official laws and rules of society.
Self-centered people can be empathic.There's no one reason why people get depressed
They though that they should study classical works because during the Renaissance, art was starting to become alive(3D progression). They though they needed the works in able to improve their ability of artistic skills.
Interviewing requires learning to be what the interviewer perceives as his or her ideal candidate for the job. It means communicating effectively your most appropriate qualities that make you this person, and not communicating your many other skills or traits that make you less than ideal.