Malthusian League had spread throughout Europe, advocating contraception. Although the controversial economic theory of Malthusianism was derived from an essay by Thomas Malthus about the economic effects of population growth, Malthus himself was an advocate of abstinence rather than contraception. Critical reception Upon its publication, Rebecca West praised Brave New World as "The most accomplished novel Huxley has yet written", Joseph Needham lauded it as "Mr. Huxley's remarkable book", and Bertrand Russell also praised it, stating, "Mr. Aldous Huxley has shown his usual masterly skill in Brave New World." Brave New World also received negative responses from other contemporary critics, although his work was later embraced. In an article in the 4 May 1935 issue of the Illustrated London News, G. K. Chesterton explained that Huxley was revolting against the "Age of Utopias". Much of the discourse on man's future before 1914 was based on the thesis that humanity would solve all economic and social issues. In the decade following the war the discourse shifted to an examination of the causes of the catastrophe. The works of H. G. Wells and George Bernard Shaw on the promises of socialism and a World State were then viewed as the ideas of naive optimists. Chesterton wrote: Similarly, in 1944 economist Ludwig von Mises described Brave New World as a satire of utopian predictions of socialism: "Aldous Huxley was even courageous enough to make socialism's dreamed paradise the target of his sardonic irony." Fordism and society The World State is built upon the principles of Henry Ford's assembly line: mass production, homogeneity, predictability, and consumption of disposable consumer goods. While the World State lacks any supernatural-based religions, Ford himself is revered as the creator of their society but not as a deity, and characters celebrate Ford Day and swear oaths by his name (e.g., "By Ford!"). In this sense, some fragments of traditional religion are present, such as Christian crosses, which had their tops cut off to be changed to a "T", representing the Ford Model T. In England, there is an Arch-Community-Songster of Canterbury, obviously continuing the Archbishop of Canterbury, and in America The Christian Science Monitor continues publication as The Fordian Science Monitor. The World State calendar numbers years in the "AF" era—"Anno Ford"—with the calendar beginning in AD 1908, the year in which Ford's first Model T rolled off his assembly line. The novel's Gregorian calendar year is AD 2540,