Jacob Bronowski (1908-1974) lived through what he described as 'the two great catastrophes of the twentieth century: the rise of Hitler in 1933 and the dropping of the atomic bombs in 1945', and yet the keynote of his astonishingly rich and varied life and work was an enduring optimism. Bronowski was a professional scientist, scientific administrator, poet, philosopher, dramatist and television and radio personality, possessing an energy and versatility that make him a rare figure in our cultural history. His final achievement, the groundbreaking television series The Ascent of...