Does beauty lie merely in the eye of the beholder? Is the human soul immortal? What does it mean to know something? What is the nature of erotic love? Here, Adler examines these questions, as well as many others, with his trademark clarity, rigor, and common sense. Providing a broad-ranging inventory of the 125 most used and abused terms in the philosophical lexicon, Adler precisely defines such key terms as: *chance *good and evil *memory*choice *honor *soul*duty *human nature *timeStimulating, engaging, and organized in any easy-to-use, A-to-Z format, Adler's Philosophical Dictionary is an ideal introduction to the history of the great ideas.