Moral Character At the heart of one major approach to ethics—an approach counting among its proponents Plato, Aristotle, Augustine and Aquinas—is the conviction that ethics is fundamentally related to what kind of persons we are. Many of Plato’s dialogues, for example, focus on what kind of persons we ought to be and begin with examinations of particular virtues: What is the nature of justice? (Republic)

Empathy and Sympathy in Ethics The distinction between “empathy” and “sympathy” in the context of ethics is a dynamic and challenging one. The eighteenth century texts of David Hume and Adam Smith used the word “sympathy,” but not “empathy,” although the conceptual distinction marked by empathy was doing essential work in their writings. After discussing the early uses of these terms, this article is organized

Toleration The heart of tolerance is self-control. When we tolerate an activity, we resist our urge to forcefully prohibit the expression of activities that we find unpleasant. More abstractly, toleration can be understood as a political practice aiming at neutrality, objectivity, or fairness on the part of political agents. These ideas are related in that the goal of political neutrality is deliberate restraint of the power

Adolf Lindenbaum photo by permission of the Archives of the University of Warsaw Adolf Lindenbaum was a Polish mathematician and logician who worked in topology, set theory, metalogic, general metamathematics and the foundations of mathematics. He represented an attitude typical of the Polish Mathematical School, consisting of using all admissible methods, independently of whether they were finitary. For example, the axiom of choice was freely

Conceptual Role Semantics In the philosophy of language, conceptual role semantics (hereafter CRS) is a theory of what constitutes the meanings possessed by expressions of natural languages, or the propositions expressed by their utterance. In the philosophy of mind, it is a theory of what constitutes the contents of psychological attitudes, such as beliefs or desires. CRS comes in a variety of forms, not always

Predicative and Impredicative Definitions The distinction between predicative and impredicative definitions is today widely regarded as an important watershed in logic and the philosophy of mathematics. A definition is said to be impredicative if it generalizes over a totality to which the entity being defined belongs. Otherwise the definition is said to be predicative. In the examples below, (2) and (4) are impredicative. Let π be