Conforming to Right Reason: On the Ends of the Moral Virtues and the Roles of Prudence and Synderesis

How do the intellect and will remain free while pursuing a life of virtue? This is where the question of prudence comes in. Is the practical wisdom of the prudent man founded upon some kind of innate or acquired instinct, or does it presuppose understanding of intellectually grasped basic principles? And if those principles are presupposed, is reason necessary for applying them in any given instance, or can one solely look to the rightly formed appetites acquired by moral virtue? In answeri...