Theory of Mind Theory of Mind is the branch of cognitive science that investigates how we ascribe mental states to other persons and how we use the states to explain and predict the actions of those other persons. More accurately, it is the branch that investigates mindreading or mentalizing or mentalistic abilities. These skills are shared by almost all human beings beyond early childhood. They

Moral Development This entry analyzes moral development as a perennial philosophical view complemented by modern empirical research programs. The two initial sections summarize what moral development is and why it is important for ethics and human nature theory. The “Roots” section notes historical versions of natural development in morality, touching on Confucius, Aristotle, Rousseau and Rawls. The next four sections assess current empirical research in

Jean-François Lyotard (1924—1998) French post-structuralist philosopher, best known for his highly influential formulation of postmodernism in The Postmodern Condition. Despite its popularity, however, this book is in fact one of his more minor works. Lyotard’s writings cover a large range of topics in philosophy, politics, and aesthetics, and experiment with a wide variety of styles. His works can be roughly divided into three categories: early

Benedict De Spinoza (1632—1677) Benedict de Spinoza was among the most important of the post-Cartesian philosophers who flourished in the second half of the 17th century. He made significant contributions in virtually every area of philosophy, and his writings reveal the influence of such divergent sources as Stoicism, Jewish Rationalism, Machiavelli, Hobbes, Descartes, and a variety of heterodox religious thinkers of his day. For this

Protagoras (fl. 5th c. B.C.E.) Protagoras of Abdera was one of several fifth century Greek thinkers (including also Gorgias, Hippias, and Prodicus) collectively known as the Older Sophists, a group of traveling teachers or intellectuals who were experts in rhetoric (the science of oratory) and related subjects. Protagoras is known primarily for three claims (1) that man is the measure of all things (which is