Abstract

As part of his Constructive Empiricism, Van Fraassen commends agnosticism about the existence of the unobservable entities posited by the physical sciences. This position of Scientific Agnosticism is compatible with the acceptance, in his sense, of Science. For to accept Science is, he says, to accept it as empirically adequate, but to refrain from deciding between the realistically interpreted theory and the as-if variant, according to which the observations are as if the theory is correct but the theory is not correct. My purpose in this paper is to argue, against van Fraassen, that we—or at least most of us—should embrace Scientific Realism not Scientific Agnosticism.