This document discusses various viewpoints on knowledge, education, and branches of philosophy from Western philosophers. It covers five main branches of philosophy - ontology, epistemology, axiology, logic, and metaphysics. For each branch, key concepts and questions are outlined. For example, epistemology is the theory of knowledge that studies how knowledge is acquired and what constitutes valid knowledge. It also discusses different sources of knowledge according to Western philosophers like revelation, sensory experiences, intuition, and the scientific method. Furthermore, it analyzes different philosophical perspectives on education like perennialism which focuses on teaching eternal truths.