Abstract
The principal claims supported include: (i) that 'believe' and 'know' take the same grammatical object 'that p'; (ii) that each may take grammatical objects that the other cannot take; (iii) that merely grammatical considerations cannot determine whether 'that p' designates a proposition or a fact; (iv) that, on an epistemically relevant interpretation, 'that p' may be construed either as designating a proposition or a fact or both; (v) that propositions and facts are correlative and heuristic entities. The issues are developed in the context of exploring chiefly the views of Zeno Vendler, Alan White, and Peter Geach. Complications bearing on the distinction between thought and speech are considered.