This document provides an introduction to the philosophy of the human person. It discusses the origins and definition of philosophy, tracing it back to Pythagoras who first used the term "philosopher" to describe those who seek wisdom. It explains that philosophers aim to understand realities of the world through inquiry rather than just receiving knowledge. The document also outlines some key aspects of philosophy, including that it integrates different disciplines to achieve a comprehensive worldview, analyzes the foundations of other fields, and critically examines beliefs and traditions. It discusses Aristotle's view that philosophy arose from people's sense of wonder and desire to overcome ignorance. The core branches of philosophy are identified as metaphysics, epistemology, ethics, and aesthetics