Introduction

The papers in this Special Issue were presented at a one-day conference in memory of Professor Philip Stratton-Lake, at the University of Reading in 2025.It was a packed and bittersweet event, and we are particularly honoured that his wife and son were able to attend.Philip Stratton-Lake was one of Onora O'Neill's first doctoral students, working on Kantian ethics.After he took up his first philosophy post at the University of Keele, Stratton-Lake's interests shifted towards the intuitionism of Jonathan Dancy and David McNaughton, and the pluralism of W. D. Ross.Dancy was recruited to the University of Reading in 1996 and he in turn recruited Stratton-Lake in 1998.Two years later, Stratton-Lake's book on Kantian ethics came out.By that point, Stratton-Lake was already one of the world's foremost experts on both intuitionism and Ross-style pluralist ethics.