This is an immensely intelligible, thought-provoking guide by a Nobel prize-winner that considers such topics as the distinction between appearance and reality, the existence and nature of matter, idealism, inductive logic, intuitive knowledge, many other subjects. For students and general readers, there is no finer introduction to philosophy than this informative, affordable and highly readable edition. It is an intelligible and stimulating guide to those problems of philosophy that he believes will provoke positive and constructive discussion.