On the Propositional Attitudes

An adequate account of the nature of the so called 'propositional attitudes' has long been sought by philosophers of mind, and most theories which have been proposed have suffered from certain logical or epistemological defects or have been limited in scope. The issues centering around the nature of beliefs, desires, and the other attitudes pertain to two principal areas of investigation: the explication of a (psychological) theory concerning the objects of the propositional attitudes and the analysis of the logical structure of such sentences as those with the form 'A believes that p' or 'A wishes (desires) that p.' My main concern in this paper is with problems associated with the latter endeavor. Such problems in an important respect are more basic, for a successful attempt at characterizing the typical form of sentences that express propositional attitudes must be made before any theory about the objects of beliefs, desires, and other intentions can possibly take shape.1 The sentence "Jones believes that there are unicorns" has the typical form of the members of a class of sentences each one consisting of one or more names or denoting phrases followed by an intentional idiom of the kind 'believes that', 'desires that', 'wishes that', 'hopes that', 'fears that', 'says that', 'wonders whether', etc. followed by a complete sentence. Such complex sentences when taken as assertions have usually been seen as expressing a relationship (or a propositional attitude) of one kind or another between an object (usually a person) and a belief, desire, wish, hope, or other intention (or object of the propositional attitude). For the sake of facilitating the discussion regarding these sentences, I shall, with a certain degree of liberty, call such idioms consisting of the word 'that' preceded by a verb of intention 'proposing phrases'; 1 seek then an analysis of the role such phrases have in determining the logical form of sentences in which they occur. I will begin my account by specifying the logical requirements any such analysis must meet and then briefly examine some of the proposed analyses (each one of which I believe fails to satisfy at least one requirement) and then end by presenting and justifying my analysis, which, hopefully, does meet these requirements.