Distinguished philosopher Hilary Putnam, who is also a practicing Jew, questions the thought of three major Jewish philosophers of the 20th century-Franz Rosenzweig, Martin Buber, and Emmanuel Levinas-to help him reconcile the philosophical and religious sides of his life. An additional presence in the book is Ludwig Wittgenstein, who, although not a practicing Jew, thought about religion in ways that Putnam juxtaposes to the views of Rosenzweig,...