When the 35-year-old Zwelakhe Sisulu arose to deliver the keynote address reproduced below, he stepped into a spotlight of national leadership toward which he had been moving for a decade. From an important role in the Black Consciousness Movement, he had become a leading strategic thinker for the United Democratic Front, South Africa’s most widely representative, nonracial coalition. Described by a colleague as “a charismatic, handsome figure with a resonant voice,” a man of “sharp intellect” and “sharp wit,” he is now recognized as one of the country’s outstanding younger leaders, comparable to Steve Biko, who died at the hands of the security police in 1977.