Kenneth Clark: Life, Art and Civilisation by James Stourton Knopf, 2016, 478 pages, $65 _____________________________ This new and detailed biography is unlikely to be surpassed by any further single work on Kenneth Clark. That is the case despite Stourton’s own modest averral that his book should be seen as “notes towards a definition”. Whilst others (and particularly art historians) may well produce further studies on Clark and his major achievement on the cultural history of the West, the BBC series Civilisation, they are likely to be studies of a much more specialised nature. What Stourton gives us is not the…