Abstract
That Wilfrid Sellars claims that the framework of persons is not a descriptive framework, but a normative one is about as well known as any claim that he makes. This claim is at the core of the famous demand for a synoptic image that closes, “Philosophy and the Scientific Image of Man,” makes its appearance at key moments in the grand argument of, “Empiricism and the Philosophy of Mind,” and is the capstone of Sellars’ engagement with Kant in, Science and Metaphysics. Whereas mere things can be subject to ought-to-be rules—e.g. a clock ought to chime on the hour—to be a person, as Sellars understands it, is to be subject to ought-to-do rules—e.g. one ought to wind one’s clocks to chime on the hour.
Prima facie, though, there is more to being a person than just being subject to ought-to-do rules. For example, on at least some common ways of using ‘person’ to be a person is to have a unified consciousness, i.e. to be a single subject of a manifold of experience persisting through time. Arguably, that is what Kant takes a person to be. What I hope to show here is that it is what Sellars takes a person to be too. I.e. the exciting twist here is that as Sellars sees it being a single subject of experience persisting through time is being subject to a particular kind of ought-to-do rules, namely, those concepts-qua-inferential-rules that are the means by which we represent the world of causally-related objects existing in space and persisting through time.
I take Sellars’ reasons for holding this set of theses to be essentially Kantian, and so my procedure for explicating them will be to trace a single philosophical thread through both Kant’s and Sellars’ thinking surrounding these issues. I begin with the historical problematic to which Kant’s Transcendental Deduction is intended as an answer. By what right does one apply the pure a priori concepts of the understanding? As the necessary means for representing the analytic unity of apperception, i.e. for representing oneself as the single subject of experience persisting through time. That leads to a consideration of the question of what the temporally-discursive experiences are of which one is supposed to be the single subject, and what the nature of the relation is of these experiences to such a subject. Here Sellars provides the answer. The question is ill formed. There is no relation of experiences to a subject because experiences are not themselves things. Rather, ‘an experience’ is a nominalization of the verb ‘experiencing’, which is itself a description of the act of a person. That thesis, then, brings us squarely to the question of what the framework of persons is, and why Sellars is so confident that it is an ineliminable feature of any future iteration of the synoptic image of the world. The answer to the latter question is that descriptive images themselves (scientific or manifest) are constituted by the rules that govern them, and it is only persons that can be subject to such rules. So, in the end, we return to Kant’s claim in the Transcendental Deduction that our representation of a world of causally-related objects existing in space and persisting through time is the means by which one represents oneself as the single subject of experience persisting through time. The descriptions that the scientific image provides are only possible, and necessary, because of what Kant would call their “ultimate principle”: the framework of persons.