When Michael Hunter first publicized the idea of ‘Psychoanalysing Robert Boyle’ I understood that his main aim was to test three competing psychoanalytical theories against the historical evidence provided by the life and work of Robert Boyle. Although this would have been a valuable exercise, and one that the British Society for the History of Science meeting partly engaged, the papers by Brett Kahr, John Clay and Karl Figlio published here raise some far more compelling issues which I shall explore in the ensuing discussion. Before turning to this discussion I offer a few introductory remarks.