 The point is that the scientific or epistemic value of, say, astronomy, is not to be found in what is given and observable by the senses, but rather in the mathematical exactness of its equations. These alone constitute and underwrite the truth-value of astronomy’s propositions, and they are solely the achievements of reason’s activity. As noted above, the essential characteristic of science lies in its objectivity, and that objectivity is rooted in its lawfulness. It is this formal feature of objectivity that constitutes the philosophical interest in science, not the material content of a particular science’s theorems; in other words, the philosophical question is: “How is this lawfulness possible?” This question is distinct from the psychological question, “What are the psychological laws that make it possible for me (as a psychophysical being) to observe a star?” or the astronomical question, “What are the laws governing the ’being’ of this star in its states and properties?”