charles sumner said this speech augers trouble. mr. matthews: at appomattox courthouse, someone is operating under someone's instructions. grant said you go home with your horse, keep your sidearms. go home. you are free. mr. wilson: he got those instructions from lincoln. let them up easy. mr. matthews: well, let's move on to dr. carson. the late dr. coretta scott king picked you to edit and publish the letters of dr. king. tell us about what we heard tonight. dr. carson: in some ways, it is a parallel trade lincoln believed the inaugural was a better speech than the other speech. arguably, i think the speech he gave in memphis was a better speech. it was a fuller speech. it was a more coherent speech. i think what he was trying to do was sum up the meaning of his life. he had reached the point where he was ready for death, but he had always been ready for that. but i think what he was coming to decide was that he was not going to accomplish his great goals in life. some people, most of you perhaps, think of him as a civil rights lead