I describe and defend the view in a philosophy of mind that I call 'Normative Essentialism', according to which propositional attitudes have normative essences. Those normative essences are 'horizontal' rational requirements, by which I mean the requirement to have certain propositional attitudes given other propositional attitudes. Different propositional attitudes impose different horizontal rational requirements. I distinguish a stronger and a weaker version of this doctrine and argue for the weaker version. I explore the consequences for knowledge of mind, and I (...) then consider objections to the view from mental causation, from empirical psychology, and from animals and small children. (shrink)

This paper tries to say in what sense truth is a norm, a thesis that Donald Davidson, whose view are examined, denies. After skteching his conception of rationality, it is argued that truth is a norm in only the sense that we ought to believe what we believe is true, not that we all to believe everything which is true. This minimal norm of truth is isolated and defended.

A commonplace in contemporary philosophy is that mental content has normative properties. A number of writers associate this view to the idea that the normativity of content is essentially connected to its social character. I agree with the first thesis, but disagree with the second. The paper examines three kinds of views according to which the norms of thought and content are social: Wittgenstein’s rule following considerations, Davidson’s triangulation argument, and Brandom’s inferential pragmatics, and criticises each. It is argued that (...) there are objective conceptual norms constitutive of mental content, but that these are not essentially social. (shrink)