“I Have a Dream,” transcribed from the audio recording at “Freedom's Ring ‘I Have a Dream’ Speech,” The Martin Luther King, Jr. Research and Education Institute, August 20, 2013, https://kinginstitute.stanford.edu/news/freedoms-ring-i-have-dream-speech. Five score years ago, a great American, in whose symbolic shadow we stand today, signed the Emancipation Proclamation. This momentous decree came as a great beacon light of hope to millions of Negro slaves who had been seared in the flames of…