Stimulating, engaging, and organized in an easy-to-use, A-to-Z format, Adler's Philosophical Dictionary is an ideal introduction to the history of the great ideas. The terms and concepts that have simulated thinkers from Aristotle onward come to life in the latest work by the man TIME magazine has called "America's philosopher for everyman." Is the human soul immortal? What does it mean to know something? What is the nature of erotic love? Adler examines these questions as well as many others with his trademark clarity, rigor, and common sense.