  In ‘General Propositions and Causality’ (1929), Ramsey followed this with Peirce’s idea that beliefs “guide our actions” (Peirce 1992, 114), describing a belief as a “map by which we steer” (1929b, [PP] 146). It is for this very reason that he could not countenance the belief qua map being infinite: “if we professedly extend it to infinity, it is no longer a map; we cannot take it in or steer by it. Our journey is over before we need its remoter parts” (1929b, [PP] 146). He then introduced the notion of ‘variable hypotheticals’ as forming the “system with which the speaker meets the future” and described them in terms strongly reminiscent of Weyl: