The certain moral belief that, I am a good person, and this other person, they are a bad person, has justified some of the most heinous crimes. For example, consider the Holocaust. It was founded on the belief that the Jews, they are bad people. Take torture during the Global War on Terror. It was founded on the belief that these radical Muslims are bad people, so they were tortured. The certain belief that I am a good person, and this other group of people, they are bad people, has justified some of the heinous crimes. What Hannah Arendt said was the banality of evil, how ordinary people commit horrible crimes. This is also the story of Stanley Milgram's prison experiment. People who don't have the self-awareness that they might be evil or do something bad or who believe themselves morally superior, commit some of the most horrible crimes. I have at times thought that I ...