Richard T. W. Arthur received a BA in physics from Oxford University and an MA in philosophy from McGill, before gaining a PhD at the University of Western Ontario in 1981, writing his thesis on Time and Temporal Becoming in the Foundations of Physics. Since 2002 he has been Professor of Philosophy at McMaster University, where he also taught in the Origins Institute, and is now Professor Emeritus. Richard Arthur is past President of the Canadian Society for the History and Philosophy of Science, Vice President of the Leibniz Society of North America, and a member of several other professional organisations. He has published widely in the history of philosophy, science and mathematics, as well as in the epistemology of science, and on contemporary issues in the philosophy of physics, especially concerning space and time.