HAMID VAHID is Professor of Philosophy and the Head of the Analytic Philosophy Faculty at the Institute for Fundamental Sciences in Tehran, Iran. He is the author of Epistemic Justification and the Skeptical Challenge and has published work in several journals including Philosophical Studies, Philosophy and Phenomenological Research, Synthese, Erkenntnis, European Journal of Philosophy, Kant-Studien, Metaphilosophy and Ratio.