his humanity. There was nothing of the cold intellectual about him." Lionel Robbins, former head of the economics department at the London School of Economics, who engaged in many heated debates with Keynes in the 1930s, had this to say after observing Keynes in early negotiations with the Americans while drawing up plans for Bretton Woods: Douglas LePan, an official from the Canadian High Commission, wrote: Bertrand Russell named Keynes one of the most intelligent people he had ever known, commenting: Keynes's obituary in The Times included the comment: "There is the man himselfradiant, brilliant, effervescent, gay, full of impish jokes ... He was a humane man genuinely devoted to the cause of the common good." Critiques As a man of the centre described by some as having the greatest impact of any 20th-century economist, Keynes attracted considerable criticism from both sides of the political spectrum. In the 1920s, Keynes was seen as anti-establishment and was mainly attacked from the right. In the "red 1930s", many young economists favoured Marxist views, even in Cambridge, and while Keynes was engaging principally with the right to try to persuade them of the merits of more progressive policy, the most vociferous criticism against him came from the left, who saw him as a supporter of capitalism. From the 1950s and onwards, most of the attacks against Keynes have again been from the right. In 1931, Friedrich Hayek extensively critiqued Keynes's 1930 Treatise on Money. After reading Hayek's The Road to Serfdom, Keynes wrote to Hayek: "Morally and philosophically I find myself in agreement with virtually the whole of it." He concluded the letter with the recommendation: On the pressing issue of the time, whether deficit spending could lift a country from depression, Keynes replied to Hayek's criticism in the following way: Asked why Keynes expressed "moral and philosophical" agreement with Hayek's Road to Serfdom, Hayek stated: According to some observers, Hayek felt that the post-World War II "Keynesian orthodoxy" gave too much power to the state, and that such policies would lead toward socialism. While Milton Friedman described The General Theory as "a great book", he argues that its implicit separation of nominal from real magnitudes is neither possible nor desirable. Macroeconomic policy, Friedman argues, can reliably influence only the nominal. He and other monetarists have consequently argued that Keynesian economics can result in stagflation, the combination of low growth and high inflation