I have wide-ranging research interests. In my writing, I focus on metanormative issues concerning norms, reasons, value, and virtue, across ethics, epistemology, and (in recent years) aesthetics. I am also now working on the ethics and aesthetics of photography.
A number of my published papers are concerned with defending a particular theory concerning the nature of normative reasons (reasons to do things, believe things, and so on), but I have also published articles and book chapters on moral knowledge, virtue and ethical theory, moral skepticism, the history of moral metaphysics, and Confucian ethics.
My first book builds on my earlier work on reasons, but is broader in scope, as it is about the relationship of normative ethical theory to ordinary virtue. My interest in reasons and the nature of normativity led to an Oxford Handbook, while my interest in ethics in general lies behind my commitment to a long-running ethics seminar series at Boston University.