“By understanding prejudice as our self-justifying servant, we can better see why some prejudices are so hard to eradicate: They allow people to justify and defend their most important social identities—their “white” race, their religion, their gender, their sexuality—while reducing the dissonance between “I am a good person” and “I really don’t like those people.” Fortunately, we can also better understand the conditions under which prejudices diminish: when the economic competition subsides, when the truce is signed, when the profession is integrated, when they become more familiar and comfortable, when we stop seeing them as an undifferentiated mass and realize that they are as diverse a collection of individuals as we are.”