Immanuel Kant’s notion of weakness or frailty warrants more attention, for it reveals much about his theory of motivation and general metaphysics of mind. As the first and least severe of the three grades of evil, frailty captures those cases where an agent fails to act on their avowed recognition that the moral law is the only legitimate determining ground of the will. The possibility of such cases raises many important questions that have yet to be settled by interpreters. Most (...) importantly, should we account for the failures of weakness by appealing to the activity of reason or sensibility? I will discuss this question in light of a tendency to adopt an overly dualistic reading of Kant’s moral psychology. Focusing on Kant’s remarks on weakness from the Religion and the Metaphysics of Morals, I argue that we should understand weakness as arising from the unique difficulties of sense-dependent judgment, rather than from self-deception, flagging commitment, or overwhelming desire. The resulting account offers a unified moral psychology capable of accommodating the many features of weakness that are difficult to reconcile on other readings. (shrink)

My dissertation covers a number of different topics in Kant scholarship, but is driven by one central question: how do our sense-based capacities to perceive, desire, and feel relate to our capacity to reason? I take the answer to this question to be key to understanding much about Kant’s philosophical system. For topics as diverse as the role that sensation plays in practical knowledge, the character of moral motivation, the nature of evil, or Kant’s theory that we are morally required (...) to believe in our immortality and God’s existence, I claim that the correct reading turns on a novel approach to the relation between our rational and sensitive capacities. To properly understand this relation, we must overcome the deeply entrenched thought that Kant inherits his conception of reason from the rationalists, and his conception of sense experience from the empiricists. This would be to adopt a fundamentally dualistic philosophy, on which reason and the senses are independently intelligible and sometimes even diametrically opposed. On Kant’s actual view, our capacities to perceive, feel, and desire are metaphysically interdependent with and thus not intelligible in isolation from our capacity to reason. Developing the details of this more unified position leads to satisfying philosophical accounts of a number of controversial issues in Kant scholarship that have suffered under a dualistic framework. (shrink)

Review of: Merritt, M., Kant on Reflection and Virtue, Cambridge, Cambridge University Press, 2018, 219 pp. ISBN 978-1-108-42471-4.