Dewi Phillips was born in Morriston, Swansea on 24 November 1934. He was educated at Swansea Grammar School, at University College, Swansea, where he graduated MA, and at St Catherine's Society, Oxford University, receiving an Oxford BLitt. He held these academic posts: assistant lecturer in philosophy at Queen's College, Dundee in the University of St Andrews (1961–2); lecturer at Queen's College, Dundee (1962–3); lecturer in philosophy at University College, Bangor (1963–5); and lecturer in philosophy at University College, Swansea which became the University of Wales, Swansea (1965–7). Thereafter he became senior lecturer (1967–71), Professor of Philosophy (1971–96) and Rush Rhees Research Professor (1996–2003). At Swansea he was the Dean of the Faculty of Arts (1982–5) and Vice-Principal (1989–92). He is Danforth Professor of Philosophy of Religion, Claremont Graduate School, California (1992–). He has been a visiting professor at, for example, Yale University (1985), and he has given many endowed lectures: the William James, at Louisiana State University (1982); the Marett, at Oxford (1983); the Riddell Memorial, at Newcastle (1986); the Aquinas, at Oxford (1987); the Cardinal Mercier, at Leuven (1988); the R.I. Aaron, at Aberystwyth (1993); the Leibniz, at California State (1995); and the McManis, at Wheaton College (1996). Beginning in 1982 he was editor of the Journal Philosophical Investigations, and was general editor of these book series: Studies in Ethics and the Philosophy of Religion (1968–74); Values and Philosophical Enquiry (1976–86); Swansea Studies in Philosophy (1989–); and Claremont Studies in the Philosophy of Religion (1993–). In 1998 he was awarded the honorary PhD of the Abo Academy, Finland.
From The Continuum Encyclopedia of British Philosophy in Oxford Reference.