The intent of this paper is to indicate a development in Sellars' writings which points in another direction than the interpretations offered by Brandom, McDowell, and A. D. Smith. Brandom and McDowell have long claimed to preserve central insights of Sellars's theory of perception; however, they disagree over what exactly these insights are. A. D. Smith has launched a critique of Sellars in chapter 2 of his book The Problem of Perception which is so penetrating that it would tear Sellars' philosophy of perception apart if it were adequate. However, I try to show firstly that Brandom's and McDowell's interpretations are unsatisfying when Sellars' late writings are taking into consideration. And secondly that we can give another interpretation of Sellars that is not vulnerable to some of the problems of which Smith accuses Sellars.

This article takes its point of departure in a criticism of the views on meta-philosophy of P.M.S. Hacker for being too dismissive of the possibility of philosophical theory-construction. But its real aim is to put forward an explanatory hypothesis for the lack of a body of established truths and universal research programs in philosophy along with the outline of a positive account of what philosophical theories are and of how to assess them. A corollary of the present account is that it allows us to account for the objective dimension of philosophical discourse without taking recourse to the problematic idea of there being worldly facts that function as truth-makers for philosophical claims.