A compact, coherent introduction to the study of rational belief, this text provides points of entry to such areas of philosophy as theory of knowledge, methodology of science, and philosophy of language. The book is accessible to all undergraduates and presupposes no philosophical training.

In his new foreword to this edition, Hilary Putnam forcefully rejects these nativist claims.

By means of an example, shows the possibility of beliefs that are separately rational whilst together inconsistent.

This collection of pen-portraits of the renowned public intellectual Isaiah Berlin, published to mark the centenary of his birth, brings him vividly to life from many vantage-points: essential reading for all who seek to understand the full range of his impact.