- Prize Fellow, All Souls College
- President, Trinity College, Oxford (from 1978 to 1987)
- Fellow, New College, Oxford (from 1955 to 1978)
- Prize Fellow, All Souls College (from 1949 to 1955)
- Undergraduate, St Cyres Scholar, Christ Church, Oxford (from 1946 to 1949)
- President, Friends of Wellcome Institute (1992–7)
- President, Association of Independent Libraries (1991–97)
- President, Royal Institute of Philosophy (1990–2004)
- Chairman, Kennedy Memorial Trust (1990–5)
- President, Society for Applied Philosophy (1988–91)
- Chairman of the Board, British Library (1985–90)
- President, Aristotelian Society (1975–6)
- Fellow, Winchester College (1970–85)
- Governor and Chairman, Stowe School (1963–4)
