Karl Schafer

In the following I discuss the debate between epistemological internalists and externalists from an unfamiliar meta-epistemological perspective. In doing so, I focus on the question of whether rationality is best captured in externalist or internalist terms. Using a conception of epistemic judgments as “doxastic plans,” I characterize one important subspecies of judgments about epistemic rationality—focusing on the distinctive rational/functional role these judgments play in regulating how we form beliefs. Then I show why any judgment that plays this role should be expected to behave the manner internalists predict. In this way, I argue, we can explain why our basic toolbox for epistemic evaluation includes an internalist conception of rationality

Kant's Reason develops a novel interpretation of Kant’s conception of reason and its philosophical significance, focusing on two claims. First, it argues that Kant presents a powerful model for understanding the unity of theoretical and practical reason as two manifestations of a unified capacity for theoretical and practical understanding (or “comprehension”). This model allows us to do justice to the deep commonalities between theoretical and practical rationality, without reducing either to the other. In particular, through it, we see why the activities of both theoretical and practical reason are governed by a version of the Principle of Sufficient Reason, while also seeing why reason is essentially autonomous. At the same time, Kant's Reason also reads Kant as presenting us with a compelling picture of the role that reason (as a capacity or power) should play in a systematic approach to foundational philosophical questions. In doing so, it argues for an account of the fundamental norms that apply to rational beings that treats as fundamental neither substantive reasons or values nor merely structural rationality, but instead a robust conception of reason as a power or capacity — namely, the capacity for theoretical and practical understanding. The result is a form of “rational constitutivism” – one which contrasts both with the forms of “reasons fundamentalism” that are currently fashionable and the forms of “agency-first constitutivism” that have dominated much of Kantian metaethics. In this sense, the aim of the book is to vindicate Kant’s insistence that his philosophy represents nothing more or less than reason’s implicit self-understanding coming to explicit and systematic self-consciousness.

Famously, in the second Critique, Kant claims that our consciousness of the moral law provides us with sufficient grounds for the attribution of freedom to ourselves as noumena or things-in-themselves. In this way, while Kant insists that we have no rational basis to make substantive assertions about things-in-themselves from a theoretical point of view, it is rational for us to assert that we are noumenally free from a practical one. This much is uncontroversial. What is controversial is the cognitive relation to things-in-themselves that is possible from a practical point of view. Interpreters have tended to regard such “practical cognition” of things-in-themselves as a poor step-cousin of its theoretical counterpart — as a sort of mere “rational faith” unworthy of comparison with genuine theoretical knowledge or cognition. Recent work on these issues has begun to shift this picture. But this reassessment is in its early stages and remains highly controversial. My aim here is to take this tendency and push it farther than most have generally been willing to go - at least with respect to our practical self-understanding as noumenally free agents. Indeed, I believe that, far from representing an impoverished cousin of theoretical cognition and knowledge, our practical awareness of ourselves as free possesses the central marks of cognition and knowledge in Kant’s sense of these terms, albeit on practical grounds. Thus, it is no surprise that Kant is willing to speak of our consciousness of the moral law as enabling genuine cognition of noumenal freedom.

In this essay, I propose a novel way of thinking about Kant’s philosophical methodology during the critical period. According to this interpretation, the critical Kant can generally be understood as operating within a “capacities‐first” philosophical framework – that is, within a framework in which our basic rational or cognitive capacities play both an explanatorily and epistemically fundamental role in philosophy – or, at least, in the sort of philosophy that limited creatures like us are capable of. In discussing this idea, I consider the complicated relationship between the explanatory and epistemic roles that such capacities play in Kant. I also sketch how this way of thinking about Kant’s methodology can illuminate the foundations of both his theoretical and his practical philosophy, before discussing some of Kant’s reasons for finding this approach to philosophy attractive. I close with a brief discussion of the contemporary relevance of this approach.

Over the last two decades, Kant’s name has become closely associated with the “constitutivist” program within metaethics. But is Kant best read as pursuing a constitutivist approach to meta- normative questions? And if so, in what sense? In this essay, I’ll argue that we can best answer these questions by considering them in the context of a broader issue – namely, how Kant understands the proper methodology for philosophy in general. The result of this investigation will be that, while Kant can indeed be read as a sort of constitutivist, his constitutivism is ultimately just one instance of a much more general approach to philosophy – which treats as fundamental our basic, self-conscious rational capacities. Thus, to truly understand why and how Kant is a constitutivist, we need to consider this question within the context of his more fundamental commitment to “capacities-first philosophy”.