ABSTRACT
This chapter explains the triangulation argument is equally important to Donald Davidson's response to normative skepticism, but that in this case it also raises several difficult questions that will have to be tackled down the road. Normative realism is often associated with the idea that normative properties play a role in causing people to have the particular pro-attitudes. And this, when combined with the assumption that causal relations are nomological, can seem to commit normative realists to the existence of normative laws. One premise upon which the argument rests involves a claim about the essentially public character of beliefs and the other propositional attitudes. Propositional attitudes are to be thought of as theoretical states of a sort, not known by direct observation but inferred in the attempt to explain and predict behavior. As Wittgenstein puts the point, any object will have a multitude of different properties, and so could in principle give a multitude of different contents to people's attitudes.
