Host: Chris Mooney

Remember all the greatest hits of religious apologists—the ontological, cosmological, and teleological arguments for God's existence?

You may have learned how to refute them in college—but not, perhaps, with the zest and humor shown by renowned philosopher A.C. Grayling in his new book The God Argument: The Case Against Religion and For Humanism.

But Grayling isn't just making a negative case—his book is about how to live, and flourish, without religion in your life. It's about how to be good—and in the end about why, to find meaning, it's important most of all to think.

A.C. Grayling is master of New College of the Humanities, and a Supernumerary Fellow of St. Anne's College, Oxford. He has written and edited over thirty books on philosophy and other topics—including The Good Book, Ideas That Matter, Liberty in the Age of Terror, and To Set Prometheus Free.