to the war effort by helping to keep war-related industries running smoothly. In 1918, King, assisted by his friend F. A. McGregor, published Industry and Humanity: A Study in the Principles Underlying Industrial Reconstruction, a dense, abstract book he wrote in response to the Ludlow massacre. It went over the heads of most readers, but revealed the practical idealism behind King's political thinking. He argued that capital and labour were natural allies, not foes, and that the community at large (represented by the government) should be the third and decisive party in industrial disputes. He expressed derision for syndicates and trades unions, chastising them for aiming at the "destruction by force of existing organization, and the transfer of industrial capital from the present possessors" to themselves. Quitting the Rockefeller Foundation in February 1918, King became an independent consultant on labour issues for the next two years, earning $1,000 per week from leading American corporations. Even so, he kept his official residence in Ottawa, hoping for a call to duty. Wartime politics In 1917, Canada was in crisis; King supported Liberal leader Wilfrid Laurier in his opposition to conscription, which was violently opposed in the province of Quebec. The Liberal party became deeply split, with several Anglophones joining the pro-conscription Union government, a coalition controlled by the Conservatives under Prime Minister Robert Borden. King returned to Canada to run in the 1917 election, which focused almost entirely on the conscription issue. Unable to overcome a landslide against Laurier, King lost in the constituency of York North, which his grandfather had once represented. Opposition leader (1919–1921) 1919 leadership election The Liberal Party was deeply divided by Quebec's opposition to conscription and the agrarian revolt in Ontario and the Prairies. Levin argues that when King returned to politics in 1919, he was a rusty outsider with a weak base facing a nation bitterly split by language, regionalism and class. He outmaneuvered more senior competitors by embracing Laurier's legacy, championing labour interests, calling for welfare reform, and offering solid opposition to the Conservative enemy. When Laurier died in 1919, King was elected leader in the first Liberal leadership convention, defeating his three rivals on the fourth ballot. He won thanks to the support of the Quebec bloc, organized by Ernest Lapointe (1876–1941), later King's long-time lieutenant in Quebec. King could not speak French, but in election after election for the next 20 years (save