Abstract

In Chapter V of his book Res Cogitans — “On What One Knows” — Zeno Vendler attempts to maintain the thesis that the objects of knowledge and belief are incompatible, i.e., that the immediate object of believing is a picture of reality and “the immediate object of knowing is not a picture of reality but reality itself”. We shall argue that he fails in this attempt because his “incompatibilism” depends on the view that the that-clauses which are the basic verb objects of know and believe are of a type which reflect a distinction between the subjective and objective dimensions of the mental world; and it is exactly this which he does not establish;and question the philosophical significance of the wh-nominal.In Chapter IV — “Propositions” — Vendler tries to draw a distinction between “the subjective and objective dimensions of the mental world”. The subjective dimension corresponds to the world of propositions.