<br>Derek Parfit is one of the leading philosophers of our time. He is a Senior Research Fellow at All Souls College, Oxford, Global Distinguished Professor of Philosophy at New York University, and a Fellow of the British Academy and of the American Academy of Arts and Sciences. He is the author of Reasons and Persons (OUP, 1984), one of the most influential books in philosophy of the last several decades.<br>
Parfit's intricate and beautifully lucid book is undoubtedly the work of a philosophical genius. * John Cottingham, The Tablet * the most significant work in ethics since Sidgwick's masterpiece was published in 1873 ... a work of epic proportions and ambitions. * Times Literary Supplement * Review from previous edition an epochal work ... Parfit's intellectual personality radiates throughout On What Matters, which as a whole presents a gripping and illuminating picture of a single, comprehensive view of the projects of both normative and metaethical inquiry. * Mark Schroeder, Notre Dame Philosophical Reviews *