philosophy of biology, science, and mathematics, and outside academia for his work examining creationism and sociobiology. His works attempt to connect the questions raised in philosophy of biology and philosophy of mathematics with the central philosophical issues of epistemology, metaphysics, and ethics. He has also published papers on John Stuart Mill, Kant and other figures in the history of philosophy. His 2012 book documented his developing interest in John Dewey and a pragmatic approach to philosophical issues. He sees pragmatism as providing a unifying and reconstructive approach to traditional philosophy issues. He had, a year earlier, published a book outlining a naturalistic approach to ethics, The Ethical Project (Harvard University Press, 2011). He has also done work on the philosophy of climate change. Criteria for what constitutes "good science" Kitcher's three criteria for good science are: 1. Independent testability of auxiliary hypotheses "An auxiliary hypothesis ought to be testable independently of the particular problem it is introduced to solve, independently of the theory it is designed to save" (e.g. the evidence for the existence of Neptune is independent of the anomalies in Uranus's orbit). 2. Unification "A science should be unified .... Good theories consist of just one problem-solving strategy, or a small family of problem-solving strategies, that can be applied to a wide range of problems". 3. Fecundity "A great scientific theory, like Newton's, opens up new areas of research... Because a theory presents a new way of looking at the world, it can lead us to ask new questions, and so to embark on new and fruitful lines of inquiry... Typically, a flourishing science is incomplete. At any time, it raises more questions than it can currently answer. But incompleteness is no vice. On the contrary, incompleteness is the mother of fecundity... A good theory should be productive; it should raise new questions and presume that those questions can be answered without giving up its problem-solving strategies". He increasingly recognised the role of values in practical decisions about scientific research. Kuhn and creationism Kitcher is the author of Abusing Science: The Case Against Creationism. He has commented on the way creationists have misinterpreted Kuhn: Thomas Kuhn's book The Structure of Scientific Revolutions has probably been more widely read—and more widely misinterpreted—than any other book in the recent philosophy of science. The broad circulation of his views has generated a popular caricature of Kuhn's position. According to this popular