A luminous inquiry into the habits of scientific thought. Ideas that still shape thinking. In Science and Method, Henri Poincare gathers classic scientific essays where a mathematician's precision meets philosophical reach, exploring mathematics and logic alongside probing reflections on scientific methodology and the theory of knowledge. Written in the bloom of early 20th century science and rooted in the French intellectual tradition, these essays range from subtle accounts of intuition and invention to rigorous arguments about mathematical form and convention. Poincare treats method not as a rulebook but as the engine of discovery, so his reflections bear directly on the foundations of mathematics, the practice of proof, and the broader philosophy of science. The prose is brisk, exact and unexpectedly humane; readers who have admired the analytic sweep of the works of Bertrand Russell will find a complementary voice here. For scholars this collection illuminates debates that shaped modern logic; for curious general readers it opens a door to ideas usually confined to specialist circles. Each essay functions like a compact seminar: Poincare sets out a puzzle, sketches mathematical context and tests the limits of reason. Concise yet rich, the essays remain strikingly relevant to university philosophy course syllabuses and to science history readers tracing the intellectual shifts that made contemporary science possible. Republished by Alpha Editions in a careful modern edition, this volume preserves the spirit of the original while making it effortless to enjoy today - a heritage title prepared for readers and collectors alike. Accessible without sacrifice of rigour, it belongs on the shelves of anyone assembling a scientific classics collection; ideal for seminar use, casual reading, or the hands of a collector who values the French intellectual tradition and the roots of modern scientific thought. Well suited to readers interested in the theory of knowledge and the history of ideas.