This is the introductory essay to a collection commemorating the 100th anniversary of the publication in Mind of Bertrand Russell’s paper ‘On Denoting’.

This paper concerns Kripke’s puzzle about belief. I have two goals in this paper. The first is to argue that two leading approaches to Kripke’s puzzle, those of Lewis and Chalmers, are inadequate as they stand. Both approaches require the world to supply an object that the relevant intentional attitudes pick out. The problem is that there are cases which, I argue, exhibit the very same puzzling phenomenon in which the world does not supply an object in the required way. (...) The second goal is to draw out a more general lesson about Kripke’s puzzle. I argue that Kripke’s puzzle should be understood as intimately related to a phenomenon known as ‘intentional identity’, and that an adequate account of Kripke’s puzzle should be extensible to cases in which the relevant attitudes are empty. (shrink)