Linda Zagzebski

In this paper I summarize two versions of a new form of ethical theory in which all basic moral terms are defined by direct reference to exemplars of goodness. I call the Christian form Divine Motivation Theory in a book by the same name (Cambridge University Press, 2004), and the more general form I call Exemplarist Virtue Theory (Gifford Lectures 2015) or Exemplarist Moral Theory (forthcoming 2017, Oxford University Press). In the Christian form the supreme exemplar is God. In exemplarist virtue theory exemplars are superbly admirable persons or fictional characters, whose goodness is identified through the emotion of admiration rather than through the satisfaction of descriptive properties. In both versions of the theory the terms ‘good person’, ‘virtue’, ‘good life’, ‘admirable act’, and ‘right act’ are defined by the acts, motives, judgments, and attitudes of exemplary persons.

In this paper I argue that epistemic authority can be justified in the same way as political authority in the tradition of political liberalism. I propose principles of epistemic authority modeled on the general principles of authority proposed by Joseph Raz. These include the Content-Independence thesis, the Pre-emption thesis, the Dependency thesis, and the Normal Justification thesis. The focus is on the authority of a person’s beliefs, although the principles can be applied to the authority of another person’s testimony and the authority of epistemic communities.

When philosophers talk about whether it is reasonable to believe in God, they might take the high intellectual approach of presenting one or more of the traditional arguments for God’s existence, all of which have contemporary forms. Or they might take the opposite approach made popular by some Calvinist philosophers such as Alvin Plantinga who argue that a person can be reasonable in believing something without reasons to support it, and belief in God is like that. There are many beliefs for which we do not have reasons, much less arguments that demonstrate their truth, but they are nonetheless reasonable. Examples might be your belief that the people around you have feelings and thoughts, your belief that a human being is more valuable than a tree, or your belief that when you wake up in the morning you are the same person as you were the day before. The Calvinist philosophers argue that it can be reasonable to believe in God in the same way. We were designed by God to believe in other minds, the existence of a self, the dignity of human beings, and in the existence of God without argument or reasons that support those beliefs. These beliefs are reasonable because reasonable people, people who are using their faculties in the right way, have these beliefs. If some people do not believe in God it is because something has gone wrong. It is the sinfulness of humanity that makes the existence of God less obvious than the existence of the minds of the people around us.

In Finite and Infinite Goods, Robert Adams brings back a strongly Platonistic form of the metaphysics of value. I applaud most of the theory’s main features: the primacy of the good; the idea that the excellent is more central than the desirable, the derivative status of well-being, the transcendence of the good, the idea that excellence is resemblance to God, the importance of such non-moral goods as beauty, the particularity of persons and their ways of imitating God, and the use of direct reference theory in understanding how “good” functions semantically. All of these features I wholeheartedly endorse and use in different ways in my own theory. Throughout his book Adams is generous to competing points of view, and his thoroughness and attention to detail make his presentation persuasive without the defensive quality of so much philosophical polemic. With this book, Christian neoplatonism has emerged in a sophisticated contemporary form.

The idea of a virtue has traditionally been important in ethics, but only recently has gained attention as an idea that can explain how we ought to form beliefs as well as how we ought to act. Moral philosophers and epistemologists have different approaches to the idea of intellectual virtue; here, Michael DePaul and Linda Zagzebski bring work from both fields together for the first time to address all of the important issues. It will be required reading for anyone working on either side of the debate.