What “twin obligations” does Mandela mention?

Does Mandela think the oppressor is free? Why/Why not?

What did being free mean to Mandela as a boy, and as a student? How does he contrast these “transitory freedoms” with “the basic and honourable freedoms”?

Why did such a large number of international leaders attend the inauguration? What did it signify the triumph of?

What does Mandela mean when he says he is “simply the sum of all those African patriots” who had gone before him?