Pierre's experience in England warrants our saying that he believes that London is not pretty. This leads to a puzzle does Pierre, or does he not believe that London is pretty. This chapter explores a question that why should one care about Pierre. Saul Kripke suggests that the way the puzzle about Pierre arises casts doubt on a standard argument against "Millianism", the view that the semantic role of a proper name is exhausted by its being a name of whatever it names. If one thinks of a way of thinking as something to be identified with, or at least individuated in terms of, a collection of objects, properties, and relations, the puzzles Kripke presents us with are indeed difficult to solve. Kripke's puzzle is a puzzle about belief. Linguistic interpretation is not exactly Millian, but it is, or at least is usually, pretty close.