“Accused number one” had been speaking from the dock for almost three hours by the time he uttered the words that would ultimately change South Africa. The racially segregated Pretoria courtroom listened in silence as Nelson Mandela’s account of his lifelong struggle against white minority rule reached its conclusion. Judge Quintus de Wet managed not to look at Mandela for the majority of his address. But before accused number one delivered his final lines, defence lawyer Joel Joffe remembered, “Mandela paused for a long time and looked squarely at the judge” before…