(Photograph) - Subject lesson: the title of Andre Brink's novel Looking on Darkness is scratched on a cell wall below Pretoria Supreme Court. In yesterday's Amnesty lecture at Oxford's Sheldonian Theatre, the first in this year's series, Brink spoke of literature's role in dismantling apartheid and challenged the assumption in South Africa that "there is nothing to write about any more". The lectures are sponsored by The THES.