Aristotle is best known for his contributions to philosophy, science, and logic. He was a prolific writer and polymath, with a vast intellectual range that covered most of the sciences and many of the arts, including biology, botany, chemistry, ethics, history, logic, metaphysics, rhetoric, philosophy of mind, philosophy of science, physics, poetics, political theory, psychology, and zoology. He was the founder of formal logic, devising for it a finished system that for centuries was regarded as the sum of the discipline. Aristotles works shaped Western philosophy and set the groundwork for the development of modern science. Some of his most famous works include Metaphysics, which deals with the fundamental issues of reality, including the study of existence, causality, and substance, and Physics, which laid out his views on motion, time, space, and other important concepts later built upon in the scientific revolution.