Modern philosophy of science has paid great attention to the understanding of scientific "practice", in contrast to the earlier concentration on scientific "method". This work, which has contributed to this debate, shows the deficiencies of some widespread ideas about the nature of knowledge. He argues that the only feasible explanations of scientific successes are historical explanations and that anarchism must now replace rationalism in the theory of knowledge. While disavowing populism or relativism, Feyerabend continues to insist that the voice of the inexpert must be heard. Thus many environmental perils were first identified by non-experts against prevailing assumptions in the scientific community.

First published January 1, 1975