David Miller elegantly and provocatively reformulates critical rationalism-the revolutionary approach to epistemology advocated by Karl Popper-by answering its most important critics. He argues for an approach to rationality freed from the debilitating authoritarian dependence on reasons and justification. "Miller presents a particularly useful and stimulating account of critical rationalism. His work is both interesting and controversial... of interest to anyone with concerns in epistemology or the philosophy of science." -Canadian Philosophical Reviews