Memory, however, will associate that day with Dr. King’s “I Have a Dream” speech and his vision of a shared future in which we are judged by the “content of our character” rather than the color of skin. He imagined a day in which the heat of oppression would be transformed into “an oasis of freedom and justice,” and every American could sing with meaning and conviction, “My country, ’tis of thee, sweet land of liberty.... Let freedom ring.”