I am a philosopher interested in a wide range of issues including ethics, epistemology, metaphysics, moral psychology, and bioethics.

I’m currently Director of the Masters Program in Bioethics and a Clinical Associate Professor in the Center for Bioethics with affiliation in the Department of Philosophy at New York University.

From 2006 to 2009, I was the Deputy Director and James Martin Senior Research Fellow in the Program on the Ethics of the New Biosciences in the Faculty of Philosophy at Oxford University.

I was the Harold T. Shapiro Research Fellow in the University Center for Human Values at Princeton University in 2003-2004, and a Greenwall Research Fellow at Johns Hopkins University and a Visiting Researcher at the Kennedy Institute of Ethics at Georgetown University from 2004-2006. I obtained my doctorate in philosophy from Oxford University and graduated magna cum laude with an AB from Princeton University.

In May 2007, I founded Ethics Etc, a group blog for discussing contemporary philosophical issues in ethics and related areas.

My homepage is enabled so that you can comment on any of my papers online by clicking on the title of the paper. I very much welcome your inputs. Please provide your real, full first and last name and a real email address. The email address will not be disclosed. Owing to the possibility of spam, I reserve the right to moderate and delete any off-topic comments.

You can also contact me at

19 University Place, Room 521
New York University
New York, NY 10003
email: matthew.liao (at) nyu.edu