Abstract

Our rationality depends on the reasons we have for accepting and preferring what we do. But where do reasons come from? What makes what I accept a reason for a conclusion or what I prefer a reason for action? We can explain where reasons come from without postulation or regress. The explanation rests on our trustworthiness combined with our acceptance of it and our preference for it. The explanation reveals that theoretical and practical reason are intertwined in a loop of trustworthiness in what we accept, what we prefer and how we reason. The loop is the keystone of our rationality.