Philosophy of science as it was taught to John Rawls
It’s Only A Theory: Philosophy of science as it was taught to John Rawls
One crucial distinction between the use of a theory in natural science, as opposed to its use in ethics, is that in the former the subject matter is the empirical laws expressed by different causal relations, and whenever the theory does not explain these the theory must be modified; whereas in the latter, the subject matter is the rational judgements of reasonable men, and while we have defined them to be coercive over a theory in the preliminary stage of inquiry, they can be altered, if reasonable men wish to do so; and they may want to change them should they discover that a few recognized judgments are not in harmony with some general principles which explicate most of their other judgments, and which seem to be justifiable.