Charles Anthony Raven Crosland (29 August 1918 – 19 February 1977), otherwise Tony Crosland or C.A.R. Crosland, was a British Labour Party politician and author. He served as Member of Parliament for South Gloucestershire and later for Great Grimsby. Throughout his long career he occupied the cabinet positions of Secretary of State for Education and Science, President of the Board of Trade, Secretary of State for Local Government and Regional Planning and Foreign Secretary. A prominent socialist intellectual, he became one of the Labour Party's revisionists on the right, as an intellectual leader of Gaitskellism. His highly influential book The Future of Socialism (1963) argued against many Marxist notions and Labour Party orthodoxy that public ownership was essential to make socialism work. He offered positive alternatives to both right and left wings of his Labour Party. He downplayed public ownership of the means of production – the classic socialist formulation – and argued instead for making the highest priority the end of poverty and improved public services. As foreign secretary he promoted détente with the Soviet Union.