A hundred years have now gone by since in the midsummer of 1882 Pierre Duhem, a graduate of College Stanislas, completed with brilliant success his entrance exams to the Ecole Normale Superieure and embarked on his career as a theoretical physicist. His father, a textile salesman, hoped that Hierre would pursue a career in business, one of the few professional fields where perhaps he would not have succeeded. Not that young Duhem lacked sense for the practical. He could have easily made a name for himself as an artist had he developed professionally his skill to draw portraits and landscapes. His ability to make a point and his readiness to join in a debate, could have earned him fame as a lawyer. A potential actor was in sight when he entertained friends with mimicry. That as a student of physics he entered and stayed first in his class at the Ecole Normale, did not thwart his talents for the life sciences. No less a biologist than Pasteur tried to obtain Duhem for assistant. His command of Greek and Latin would have secured him a career as a classicist. He was a Frenchman, not to be met too often, whose rightful ad miration for and mastery of his native tongue, did not prove a barrier to the major modern languages. As one who taught himself the complex art of medieval paleo graphy, he could easily have mastered the many auxiliary sciences needed by a consummate historian.

Christopher Norris attempts to make epistemology, the theory of knowledge, accessible to students and those with little prior knowledge of the subject through a series of debates which aim to give an balanced overview.

More than any other major twentieth-century writer, Pierre Duhem has been the victim of ill-informed guesswork. For instance, many references to Duhem stress the importance of his Catholic faith, but nearly all of them draw the obvious-and entirely erroneous-conclusions about the role of Catholicism in Duhem's thinking. This book pays particular attention to the political and intellectual context of French Catholicism, wracked as it was by the tensions of Dreyfus affair and the so-called modernist crisis. Duhem took his inspiration, not from the papally-sponsored revival of the thought of St. Thomas Aquinas, but from Pascal, a fact that aroused suspicions of skepticism in the minds of conservative Catholics. The tensions between Duhem's work and authoritarian Catholic positions became more explicit as his historical work unfolded. Most famous for his denial of the possibility of a crucial experiment which could unambiguously decide between contending scientific theories, Duhem has often been interpreted as a mere instrumentalist or conventionalist, denying the meaningfulness of a reality behind the theory. Dr. Martin shows that Duhem was a Pascalian who argued for both logic and intuition as indispensable in approaching the truth. Duhem argues that physics could not legitimately be used to attack Christianity, but he held that physics was equally useless for the defense of Christianity, a position which made him unpopular with many Catholics.