Widely used by instructors who emphasize the logical structure of philosophical theories and the dialectical play of argument, this popular work provides clear, reliable, and up-to-date discussions of central philosophical debates. The fourth edition incorporates major revisions--the first since 1982--and features an extensive change in content. Every chapter has been reworked to improve its organization, to make it more accessible and engaging to the student, and to reflect recent discussions.

Against the traditional view, Alvin Goldman argues that logic, probability theory, and linguistic analysis cannot by themselves delineate principles of rationality or justified belief. The mind's operations must be taken into account.

1 Knowledge and Justification This book is an investigation of one central problem which arises in the attempt to give a philosophical account of empirical ...