It isn't spelled out in what makes an utterance true, it can only be spelled out in terms of its expected effects and motivations. — fdrake
Expected effects is what truth "really" is about? I think if you map out the lived landscape, insert that all that is there is a kind of, well, "thereING" rather than simply "there" then whatever you think about truth, knowledge, reality, ethics, aesthetics, mind is going to have to be reconstrued, for there is now a new foundational term in play: time. The pragmatists talked like this long ago (see Dewey, Peirce, James). Meaning is bound to doing, concepts are dynamic events, truth is, as you say, the expected effect.
So to say, "the contents of belief is propositional" puts the question to the basic assumptions about what a proposition is, and if a proposition is understood in terms of "consummatory events" (Dewey), i.e., the completion of a problem solving affair (See his Art As Experience: the organism approaches the obstacle, feels its way around, searching for a resolution, finds passage; then onward through, having the solution's details now incorporated into future possibilities)
then herein lies the understanding! Of course, the content is full, rich, powerful: this goes to value, for value is the essence of caring about this. What is value? This is about metavalue, which I wont' go into unless you want to, but I say it moves the discussion to value because the content is, of course, not discussable. Presence qua presence cannot be spoken, and if the understanding is all about pragmatics, what we call reality, truth and the rest is really ready-to-hand instrumentality of Being in the world.
I read Rorty, Dewey and Heidegger as talking about essentially the same kind of analysis of knowledge, though Heidegger is much more interesting.