The New York Times bestselling author of The Geography of Bliss embarks on a rollicking intellectual journey, following in the footsteps of history's greatest thinkers and showing us how each--from Epicurus to Gandhi, Thoreau to Beauvoir--offers practical and spiritual lessons for today's unsettled times. We turn to philosophy for the same reasons we travel: to see the world from a dif-ferent perspective, to unearth hidden...