Philosophy doesn't have to be intimidating.

Clear, approachable guides to the ideas that shape how we think, live, and understand the world.

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New to Philosophy?

Not sure where to begin? This guide walks you through what philosophy is, why it matters, and how the different branches connect.

Gateway Introduction to Philosophy A friendly starting point for understanding the big questions humanity has been asking for thousands of years.

Branches of Philosophy

The five major areas of philosophical inquiry — each one asking a fundamentally different kind of question.

Branches of Philosophy Metaphysics — An Introduction What exists? What is the nature of reality? Metaphysics tackles the most fundamental questions about what the world actually is. Branches of Philosophy Epistemology — An Introduction How do we know what we know? Epistemology examines the nature, sources, and limits of human knowledge. Branches of Philosophy Ethics — An Introduction What makes an action right or wrong? Ethics explores the principles that guide how we ought to treat each other and ourselves. Branches of Philosophy Logic — An Introduction What makes an argument valid? Logic provides the tools for distinguishing good reasoning from bad — the foundation every other branch depends on. Branches of Philosophy Aesthetics — An Introduction What makes something beautiful? Aesthetics explores our experience of art, beauty, and the deeper question of why these things move us.

History of Philosophy

Western Tradition

History — Western Ancient Philosophy — An Introduction The story of Western philosophy begins with a simple question: what is the world made of? Ancient thinkers launched an intellectual tradition that still shapes how we think today. History — Western Medieval Philosophy — An Introduction For nearly a thousand years, philosophy and theology were deeply intertwined. Medieval thinkers wrestled with how reason and faith could coexist. History — Western Early Modern Philosophy — An Introduction The early modern period saw philosophy break free from medieval constraints. Thinkers like Descartes, Locke, and Kant rebuilt the foundations of knowledge from the ground up. History — Western 19th Century Philosophy — An Introduction The 19th century was an era of radical upheaval in philosophy — thinkers like Hegel, Marx, and Nietzsche challenged everything their predecessors took for granted. History — Western 20th Century Philosophy — An Introduction The 20th century split philosophy into competing traditions and expanded its reach into language, politics, identity, and the nature of meaning itself.

Eastern Tradition

History — Eastern Chinese Philosophy — An Introduction Chinese philosophy asks how we should live together in harmony. From Confucius to Laozi, these traditions shaped one of the world's great civilizations. History — Eastern Indian Philosophy — An Introduction Indian philosophy encompasses some of humanity's deepest explorations of consciousness, reality, and liberation — traditions stretching back over three thousand years. History — Eastern Japanese Philosophy — An Introduction Japanese philosophy weaves together Buddhist, Shinto, and Confucian threads into a tradition uniquely attuned to beauty, impermanence, and the art of everyday life.