Shaun Nichols is Distinguished Professor of Arts & Sciences in Philosophy at Cornell University. He works at the intersection of philosophy and cognitive science, and his research concerns the psychological underpinnings of philosophical thought. He is the author of Sentimental Rules: On the Natural Foundations of Moral Judgment, Bound: Essays on Free Will and Moral Responsibility, and Rational Rules: Towards a Theory of Moral Learning, as well as over 200 articles in academic books and journals. David Shoemaker has professed at California State University, Northridge, Bowling Green State University, Tulane University, and Cornell University. He has published over 70 articles and five monographs on topics such as personal identity and ethics, agency and responsibility, humour and morality, property rights, and the philosophy and moral psychology of emotions. He is the founder and co-organizer of the New Orleans Workshop on Agency and Responsibility (NOWAR), thegeneral editor of the OUP series Oxford Studies in Agency and Responsibility, and is currently the Book Review Editor of The Philosophical Review.