John Maynard Keynes From Wikiquote Jump to: navigation, search A study of the history of opinion is a necessary preliminary to the emancipation of the mind. John Maynard Keynes, 1st Baron Keynes of Tilton (5 June 1883 - 21 April 1946) was a British economist whose ideas, known as Keynesian economics, had a major impact on modern economic and political theory and on many governments' fiscal polic..