William B. Irvine is emeritus professor of philosophy at Wright State University in Dayton, Ohio, USA. He is the author of eight books that have been translated into more than twenty languages. His A Guide to the Good Life: The Ancient Art of Stoic Joy played a key role in the Stoic renaissance that has taken place in recent years. His subsequent The Stoic Challenge: A Philosopher’s Guide to Becoming Tougher, Calmer, and More Resilient provides a strategy for dealing, in proper Stoic manner, with the setbacks we experience in daily living. He is currently at work on a book about thinking critically, but with an open mind, in the age of the internet.