In 2016–17, he was Brady Distinguished Visiting Professor of Ethics and Civic Life at Northwestern University.
He has been a visiting Fellow of All Souls College (Oxford), the Australian National University, and the Hastings Center.
In 2006, he was a Distinguished Visitor at the Chinese University of Hong Kong where he gave a series of lectures on paternalism.
which listed lies he thought permissible and asked for readers to respond if they disagreed received more than 10,000 responses.
[6] In it, he argues that doctors who approve of withdrawing patients from life support at their request, or administering pain-relief medication that is foreseen to kill the patient, or who approve of terminal sedation, are inconsistent if they condemn physician-assisted suicide.