The end of the ancient world was long regarded by historians as a time of decadence, decline, and fall. In his career-long engagement with this era, the widely acclaimed and pathbreaking historian Peter Brown has shown, however, that the “neglected half-millennium” now known as late antiquity was in fact crucial to the development of modern Europe and the Middle East. In Journeys of the Mind, Brown recounts his life and work, describing his efforts to recapture the spirit of an age. As he and other scholars opened up the history of the classical world in its last centuries to the wider world of Eurasia and northern Africa, they discovered previously overlooked areas of religious and cultural creativity as well as foundational institution-building. A respect for diversity and outreach to the non-European world, relatively recent concerns in other fields, have been a matter of course for decades among the leading scholars of late antiquity.