Dr Séamus Mac Suibhne (Sweeney), consultant psychiatrist and writer, who died on 8 September 2019, was a unique, much admired figure in Irish psychiatry. His interests ranged from clinical care to philosophy, from medical education to history, from innovative technology to the natural world. He was a dedicated family man as well as a doctor, scholar and writer who moved between academic fields with ease and erudition. As a clinician, he consistently placed compassion at the centre of care. Séamus’s work appeared in the Lancet, BMJ, British Journal of Psychiatry, International Journal of Social Psychiatry and Irish Journal of Psychological Medicine, among other publications. He also wrote for the Guardian, Spectator, Scotsman and Times Literary Supplement. Séamus had a particular passion for better acknowledgement and treatment of mental illness among psychiatrists, and his compelling advocacy on this theme is one of his lasting legacies.