In this fascinating work, Sidney Hook critiques scientifically inadequate ways of belief in the hope that, if we recognise the ways in which they are confused with genuinely scientific ways of belief , society will be better positioned to assess rationally the social, political, and economic belief systems that vie for our allegiance. In reviewing the powerful ideas of Christianity, mythology, Marxism, nationalism, democracy, and other belief systems, Hook remains firm in his conviction that no such system can long survive if it resists the rational dictate of true scientific method - testing and reformulating beliefs based upon the ability to reach concrete solutions to human problems.