Paul Katsafanas is Associate Professor of Philosophy at Boston University. He works on topics at the interface of ethics and philosophy of mind, including the nature of agency and motivation; the structure of self-consciousness; and the way in which normative claims might be justified. He addresses these topics in part by mining the work of nineteenth-century philosophers including Nietzsche. His recent publications include Agency and the Foundations of Ethics: Nietzschean Constitutivism (OUP, 2013), 'Fugitive Pleasure and the Meaningful Life: Nietzsche on Nihilism and Higher Values' (Journal of the American Philosophical Association, 2015), and 'Fanaticism and Sacred Values' (Philosophers' Imprint, 2018).