In this week's Book Club, my guest is the historian Tom Holland, author of the new book Dominion: The Making of the Western Mind. The book, though as Tom remarks, you might not know it from the cover, is essentially a history of Christianity -- and an account of the myriad ways, many of them invisible to us, that it has shaped and continues to shape Western culture. It's a book and an argument that takes us from Ancient Babylon to Harvey Weinstein's hotel room, draws in the Beatles and the Nazis, and orbits around two giant figures: St Paul and Nietzsche. Is there a single discernible, distinctive Christian way of thinking? Is secularism Christianity by other means? And are our modern-day culture wars between alt-righters and woke progressives a post-Christian phenomenon or, as Tom argues, essentially a civil war between two Christian sects?