“If you are a white person who would like to treat black people as equals in every way—who would like to have a set of associations with blacks that are as positive as those that you have with whites—it requires more than a simple commitment to equality. It requires that you change your life so that you are exposed to minorities on a regular basis and become comfortable with them and familiar with the best of their culture, so that when you want to meet, hire, date, or talk with a member of a minority, you aren’t betrayed by your hesitation and discomfort.”