'An important work in constructive Jewish philosophy by a leading international scholar of the field. It is also important as a document of the kind of thinking that characterizes modern Orthodoxy. The book is intelligent and academically solid as well as thought-provoking and controversial. It is a must read by anyone concerned with modern Jewish life who wants to understand an approach that affirms both Orthodoxy and a pluralistic sense of k'lal Yisrael without compromising integrity and religious commitment.' Norbert Samuelson, CCAR Journal 'Kellner's book makes an important contribution to the possibility of dialogue between the different trends within Judaism and to the possibility of reducing the hostility and tension between them.' Daniel Statman, Ha'aretz  'Kellner is especially provocative. The challenge in his title almost jumps off the page as a cri de coeur, inviting a re-examination of beliefs taken for granted by Orthodox Jews for almost a millennium ... [he] demonstrates with passion and elegance how Maimonides radically transformed Judaism into an "ecclesiastical community" ... his social critique of the implication of dogma uniquely enhances our understanding of the Maimonidean project ... His thesis is an important one and should be read by all, encouraging urgently needed debate in the academy and the four ells of the yeshiva as well,' James A. Diamond, Jewish History  'A main contribution to a very timely question regarding the proper attitude of orthodox Judaism to non-orthodox and non-observant groups ... written with admirable clarity and touches of a highly relevant topic.' Daniel Statman, Journal of Jewish Studies 'This book has much to recommend it. Both scholarly and accessible, it is marked by a humane vision and a passionate commitment to a vibrant, outward looking Orthodox Judaism.' David Berger, Tradition 'Over the last few years, an increasing number of people have been approaching me with crises of faith. One of the resources to which I direct them is Menachem Kellner's Must a Jew Believe Anything? It is, I believe, an outstanding work.' Natan Slifkin, Rationalist Judaism ‘Outstanding' David S. Zinberg, Times of Israel