I argue that Moore’s Argument is limited in that it is viciously circular relative to four different aims. The argument is not useful for achieving those aims. But Mooreanism is true. That is, I argue that Moore’s Argument can give us knowledge of its conclusion. These elements of the view account for the common intuition that the argument is problematically circular. They account for the fact that there is a plausibly sound argument for Mooreanism. And they position me to explain the common intuition that Mooreanism makes it implausibly easy to know that we are not deceived in all of our external world beliefs: we commonly conflate the claim of Mooreanism with stronger claims implying that Moore’s Argument is more useful than it actually i...