 While the contrast between the convergence in the natural sciences within the community of inquiry and the divergence and disagreement over political and social issues within a political community is historically evident, there is a theoretical basis for the pragmatic thesis of a unitary method. Scientific method requires that inquirers are committed to the rational and open-minded investigation and analysis of experimental consequences. The celebrated illustration that Galileo cites is that he is unable to persuade his critics of the truth of scientific results if they refuse to look through the telescope. Similarly, the existence of persons whose antecedent attitudinal framework or whose bias within their structuring of their perceptions limits their ability to observe the empirical evidence that is relevant for resolving an issue does not negate the objectivity of the factual evidence or the legitimacy of the acceptance of the hypotheses that represent the optimal interpretation of the data. Along these lines, the optimal policy option or decision for resolving a problematic situation is also open, to a degree, to objective confirmation or refutation. Thus Hook identified his foundational belief to be a pragmatic theory of knowledge derived from Dewey as the basis for his extended forays into public debate over a host of political and social questions.