Moral skeptics maintain that we do not have moral knowledge. Traditionally they haven't argued via skeptical hypotheses like those provided by perceptual skeptics about the external world, such as Descartes' deceiving demon. But some believe this can be done by appealing to hypotheses like moral nihilism. Moreover, some claim that skeptical hypotheses have special force in the moral case. But I argue that skeptics have failed to specify an adequate skeptical scenario, which reveals a general lesson: such arguments are not a promising avenue for moral skeptics to take. They're ultimately weaker when applied to morality compared to perception.

In this article I offer a critical commentary on Jeanine Grenberg’s claim that, by the time of the second Critique, Kant was committed to the view that we only access the moral law’s validity through the feeling of respect. The issue turns on how we understand Kant’s assertion that our consciousness of the moral law is a ‘fact of reason’. Grenberg argues that all facts must be forced, and anything forced must be felt. I defend an alternative interpretation, according to which the fact of reason refers to the actuality of our moral consciousness.