Reason Judgments - Political or Motivational?

According to commonly endorsed “enkratic principles”, one is practically irrational if one judges that one ought to φ without intending to φ, or judges that one has a normative reason to φ without being motivated to φ. Such principles are often considered both a priori or conceptually true and revelatory of the nature of reason-implying judgments, including moral judgments. This paper, however, argues that: (1) There is intuitive ground for expanding these familiar enkratic principles to a principle we call EnkrasiaPlus. (2) EnkrasiaPlus is particularly plausible on the assumption that reason judgments have a motivational function. (3) However, it is a priori possible that actual reason judgments instead have a political function. (4) If they do, EnkrasiaPlus, including its more familiar components, loses its plausibility. (5) Practical rationality is thus at least partly a posteriori. (6) This has important implications for philosophical debates about moral motivation and moral worth.