Brian Davies is Distinguished Professor of Philosophy at Fordham University. He specializes in philosophy of religion and medieval philosophy and theology. His published books include, The Reality of God and the Problem of Evil, Thomas Aquinas's 'Summa Theologiae': A Guide and Commentary,Thomas Aquinas's 'Summa Contra Gentiles': A Guide and Commentary, and An Introduction to the Philosophy of Religion.
Michael Ruse is Emeritus Professor of Philosophy at the University of Guelph in Ontario, Canada; and was the Lucyle T. Werkmeister Professor of Philosophy at Florida State University. He is a historian and philosopher of science specializing in Charles Darwin and the revolution associated with his name. Ruse has been a Guggenheim Fellow and a Gifford Lecturer. He has been awarded four honorary degrees, and has won several honours including a PROSE award for The Cambridge Encyclopedia of Darwin and Evolutionary Thought. He is the author or editor of over sixty books and was the founding editor of Biology and Philosophy.