'Michael Curtis has written a discerning, authoritative book of intellectual history. He takes us back to the greats - Burke and Mill and Marx and Tocqueville and Weber - and throws a floodlight on the present. He has read widely and thoughtfully. From his pages, and from the company of those intellectual giants, we return with a new understanding of the civilizational conflicts that mark our contemporary world. This is a book of deep scholarship and learning, but it is written with ease and grace. A book of political theory, and of history as well. An essential book, for it retrieves for us a big piece of Western intellectual history and thought.' Fouad Ajami, Johns Hopkins University