Jacob Needleman is a professor of philosophy at San Francisco State University and the author of many books, including The Essential Marcus Aurelius, Why Can't We Be Good?, The American Soul, The Wisdom of Love, Time and the Soul, The Heart of Philosophy, Lost Christianity, and Money and the Meaning of Life. In addition to his teaching and writing, he serves as a consultant in the fields of psychology, education, medical ethics, philanthropy, and business, and has been featured on Bill Moyers's acclaimed PBS series A World of Ideas.