"Hurtle too knew better than everybody, than all these anyway, Sid  Cupples included; not that he could have explained what he knew: because  he saw rather than thought. He often wished he could think like people  think in books, but he could only see or feel his way. He itched to get  his fingers in their wool, for the feel of it."   Hurtle Duffield is the developing artist in Patrick White's novel, 'The Vivesector,' who as a child, is visiting his adopted  parents' property - a sheep ranch - from which their wealth flows (as  it did for White).   I had marked the passage, when I read it first, an age ago, which was/is a very rare occurrence. It was the first page I read  on getting home on seeing the Edward Burra exhibition yesterday. One of those coincidences that we are to pretend do not  mean anything.   It so resonated with the fragmentary interview with Edward Burra, as he  politely refused to answer any of the interviewer's questions about what  h...