I don't think it's relativism. To say that one needs art, or politics, that incorporate ambiguity and contradiction is not to say that one then stops recognizing and condemning things as evil. However, it might stop one being so utterly convinced of the certainty of one's own solutions. There needs to be a strong understanding of fallibility and how the very act of certainty or authoritativeness can bring disasters.

William Kentridge, William Kentridge (Phaidon Press Limited: 1999) p. 34