All epoch-defining events are the result of conjunctures - the correlation of normally unconnected happenings which jolts humanity out of its existin… - Robert Skidelsky

Through Marshall's life and work the Victorian demand for authoritative social doctrine found one of its most important expressions in the Cambridge School of Economics. Maynard Keynes's relationship to that tradition is one of the central themes of this biography. That relationship was never unproblematic, because Marshall's achievement was incomplete. He had shown how the existing moral code could be made to serve society rather than God. But there was nothing in his work to show how it could be altered so as to make it possible for individuals to lead happier or more civilised lives. Marshall himself seems not to have felt any pressure to do so. But Sidgwick had, as had many other thinking Victorians. It was the reorganisation of personal life rather than the reorganisation of society which seemed the urgent problem for the next generation, especially once the soc ail and economic clouds of the 1880s and 1890s had given way to the bright sunlight of the Edwardian age.

The Economic Consequences of the Peace has a claim to be regarded as Keynes's best book. In none of his others did he succeed so well in bringing all his gifts to bear on the subject in hand. Although the heart of the book was a lucid account of the reparation problem, the book was no mere technical treatise. The torrid mise-en-scène at Paris is vividly recreated; the failings of Clemenceau, Wilson and Lloyd George are displayed with cruel precision. The writing is angry, scornful and, rarely for Keynes, passionate: never again were his denunciations of bungling and lying, or his moral indignation, to ring so loud and clear. Giving shape to the whole is a brooding sense of menace; a sense of the impending downfall of a civilisation; of the mindless mob waiting to usurp the collapsing inheritance; of the futility and frivolity of statesmanship. The result is a personal statement unique in twentieth-century literature. Keynes was staking the claim of the economist to be Prince. All other forms of rule were bankrupt. The economist's vision of welfare, conjoined to a new standard of technical excellence, were the last barriers to chaos, madness and retrogression.

Keynes is not just for the foxhole, but for the emerging world order.