Aristotle pioneered a systematic approach across several domains of philosophy. In logic, he developed the syllogism—a structured form of argument that outlines premises leading to conclusions—laying the groundwork for formal reasoning. In ethics, he articulated the concept of virtue as a balanced mean between extremes, emphasizing that moral virtue is achieved through habit and practical wisdom. His work in metaphysics explored the nature of being, substance, and causality, investigating what fundamentally constitutes reality. Collectively, these contributions provided a framework that deeply influenced subsequent philosophical inquiry.