For most of the twentieth century, philosophers have explored the nature and extent of our knowledge-especially our knowledge of the world grounded in sense-perceptual experience. Can we be sure that our experience of the world is enough to ground our knowledge of an external reality? Are our everyday beliefs about our world warranted well enough for knowledge? What if we're all in The Matrix? This volume collects cutting-edge essays, written by leading philosophers, which address these fundamental questions about our place in the world. Through sustained reflection on two kinds of warrants--entitlements and justifications--they all seek to understand the nature and extent of our knowledge. Even if we were not able to justify our knowledge of the external world, we are nevertheless entitled to our view of external reality.

Peter J. Graham is Professor of Philosophy and Associate Dean for Arts and Humanities at the University of California, Riverside. He works primarily in epistemology, publishing on perceptual and testimonial entitlement, testimonial knowledge, and scepticism. He is currently working on the connection between epistemic entitlement and intellectual virtue. His articles have appeared in Mind, Noûs, Philosophy and Phenomenological Research, Synthese, Philosophical Studies, American Philosophical Quarterly, Philosophia, and various collections and anthologies. Together with Miranda Fricker, David Henderson, and Nikolaj J. L. L. Pedersen he is a co-editor of The Routledge Handbook of Social Epistemology (Routledge 2018).
Nikolaj J. L. L. Pedersen is an Associate Professor of Philosophy and Director of the Veritas Research Center at Underwood International College, Yonsei University. His main areas of research concern truth, epistemology, and metaphysics. His articles have appeared in journals including Noûs, Analysis, Philosophical Quarterly, Philosophical Issues, Synthese and Erkenntnis. He is the co-editor of Epistemic Pluralism (Palgrave 2017) Truth and Pluralism: Current Debates (Oxford 2013), and New Waves in Truth (Palgrave 2010).