premise: Harold Macmillan was a fish.
hypothesis: Maurice Harold Macmillan , 1st Earl of Stockton , ( 10 February 1894 -- 29 December 1986 ) was a British Conservative politician and statesman who served as the Prime Minister of the United Kingdom from 10 January 1957 to 19 October 1963 . Rising to high office during the Second World War as a protégé of wartime Prime Minister Winston Churchill , Macmillan then served as Foreign Secretary and Chancellor of the Exchequer under Churchill 's successor Sir Anthony Eden . In international affairs , Macmillan rebuilt the special relationship with the United States from the wreckage of the Suez Crisis ( of which he had been one of the architects ) , and redrew the world map by decolonising sub-Saharan Africa . Macmillan was the last British prime minister born in the reign of Queen Victoria , the last to have served in the First World War , the last to wear a moustache when in office , and the last to receive an hereditary peerage . The Middle Way is a book on political philosophy written by Harold Macmillan ( British Conservative Party politician and later prime minister of the United Kingdom ) .