specializes in ancient Greek philosophy, with a particular focus on ethics and epistemology. He also has interests in modern ethics and epistemology, as well as a significant side-interest in Nietzsche.
is Lecturer in Ancient Philosophy at the University of Lorraine and member of the Archives Henri Poincaré at Nancy, France. Corti specializes in ancient philosophy (ancient Greek scepticism, Hellenistic epistemologies, Aristotle's and Plato's metaphysics) and philosophy of language.

is Assistant Professor of Philosophy at Tufts University. Olfert specializes in ancient philosophy and ethics. She is interested in questions such as: How does a concern for the truth feature in practical reasoning and in action? How do we learn about what is good? How does thinking about our practical goals and projects involve thinking about the future?

teaches in the Department of Classics at Columbia University, New York. She works primarily on ancient Athenian tragedy and comedy, with a focus on Euripides and Aristophanes, and on ancient comic literature in prose and poetry. She is also interested in the history of ideas in antiquity and beyond, and in the reception of ancient texts, including biographical materials, from antiquity to the present day.

is Emeritus Laurence Professor of Ancient Philosophy at the University of Cambridge, and a Fellow of Christ's College.

is a Reader in Ancient Philosophy at the University of Cambridge and Fellow and Director of Studies in Philosophy of Corpus Christi College.

is Director of Research in French National Center of Scientific Research (CNRS) UMR 8230-École Normale Supérieure. His intersts include Papyrology, Textual Criticism, Ancient Biography, and Ancient Philosophy.

1992 MA; 1997 Dr. phil.; taught at HU Berlin, then as Assistant Professor and Associate Professor at Columbia University, New York; since 2009 Professor of Philosophy, since 2011 Chair of the Classical Studies Graduate Program at Columbia University.

Pyrrhonian skepticism has gradually gained a stellar reputation. Rather than being dismissed as extremist and evidently implausible, as it often was in the past, it is now recognized as a philosophically sophisticated outlook, sympathetic to today's commitment to science as a long-term enterprise. Ancient skepticism is now seen as an important position in the history of philosophy and as addressing core questions in epistemology. It is worthwhile to be studied by anyone interested in the nature of investigation, knowledge, belief, language and action. Leading experts contribute to this volume, which offers a philosophical introduction, translation and commentary as well as scholarly essays on one of the most important texts about Pyrrhonian skepticism, Diogenes Laertius' report about Pyrrho and Timon in his Lives of Eminent Philosophers.