Abstract
We are all pluralists today. Ecumenism—in religion, in literary criticism, in philosophy—seems obligatory, although what it requires and how sincere its professions are both are open to dispute. Some people are reluctant pluraliste, disappointed with the inescapable fact of plurality, while others embrace it with delight and hope. Everyone is a pluralist—even people whom no one else thinks of as pluralists assert that they are themselves pluralists. It takes no high theory but brute observation alone to see the omnipresence and inevitability of plurality. The plurality of philosophies seems a permanent part of philosophy in a way that it never did before. A standard introductory ethics course must include sections on Plato and Aristotle, Kant and Mill, but none of those thinkers would have taught ethics by presenting a series of rival points of view; students evaluating my courses have to testify that I encourage the examination and expression of different points of view. Descartes, Spinoza, and Kant were not pluralists and saw no need to try to do justice to competing views, but instead expressed conviction that they were about to put an end to debate and disagreement by putting philosophy on a firm scientific basis. If those older ambitions still exist, they are no longer displayed in public.