Explaining normativity: On rationality and the justification of reason

Aspects of the world are normative in as much as they or their existence constitute reasons for persons, i.e. grounds which make certain beliefs, moods, emotions, intentions or actions appropriate or inappropriate. Our capacities to perceive and understand how things are, and what response is appropriate to them, and our ability to respond appropriately, make us into persons, i.e. creatures with the ability to direct their own life in accordance with their appreciation of themselves and their environment, and of the reasons with which, given how they are, the world presents them. An explanation of normativity would explain the various puzzling aspects of this complex phenomenon. In particular it would explain how it is that aspects of the world can constitute reasons for cognitive, emotive, and volitional responses; how it is that we can come to realise that certain cognitive, emotional or volitional responses are appropriate in various circumstances, and inappropriate in others; and how it is that we can respond appropriately. This paper explores an aspect of the last of these questions.