Reality is a question that has puzzled philosophers for millennia. In this post, I will briefly outline how different thinkers have understood this concept:
For Confucius, reality is not an abstract metaphysical realm, but a moral and social order grounded in human relationships and proper conduct.
For Gautama Buddha, reality is impermanent, without a fixed self, and marked by suffering—but also understandable and transformable through insight.
For Plato, reality lies not in the visible world, but in the eternal and perfect forms that stand behind it.
For Aristotle, reality is the world we experience, grasped through understanding what things are and why they are.
For Epicurus, reality is fundamentally material, natural and entirely explained by discrete indivisible particles and void. For him, reality is knowable, but only through careful reasoning about sensory evidence.
For the Stoics, reality is fully material, rational, and unified. Everything that exists is part of a single, ordered whole.
For Ibn Sina (Avicenna), reality is a structured hierarchy of existence grounded in necessity and dependence.
For Thomas Aquinas, reality is objective, intelligible, and grounded in God.
For Thomas Hobbes, reality is purely material and mechanical. Everything that exists—including humans, thoughts, and society—can be explained in terms of matter in motion.
For John Locke, reality is external, real, and knowable—but only through experience, and never perfectly as it is in itself.
For Gottfried Wilhelm Leibniz, reality is not material at its deepest level, but made up of immaterial, mind-like substances called monads. His view is almost the opposite of Thomas Hobbes.
For Immanuel Kant, reality is not something we can know in itself directly. His view—mainly developed in his book Critique of Pure Reason—makes a crucial distinction between two levels of reality: 1. Phenomena (the reality we experience): This is the world as it appears to us. 2. Noumena (things-in-themselves): This is reality as it exists independently of us.
For David Hume, reality is far more empirical and skeptical than in Immanuel Kant. Hume thinks we should only talk about what we actually experience, and be very cautious about anything beyond that.
For Friedrich Nietzsche, reality is not a fixed, objective truth waiting to be discovered. Instead, it is interpretation, shaped by life, perspective, and power.
For Arthur Schopenhauer, reality is fundamentally will and representation—and what we normally experience is only a surface appearance of a much deeper, blind, irrational force.
For Karl Marx, reality is fundamentally material, social, and historical—not something abstract, mental, or purely interpretive.
For Ludwig Wittgenstein, reality depends a lot on which phase of his philosophy you look at—because his views changed dramatically between his early and later work. a) Early Wittgenstein (Tractatus): reality = facts. b) Later Wittgenstein: reality = use and practices.
For Jean-Paul Sartre, reality is divided between being-in-itself and being-for-itself, and is fundamentally tied to freedom, consciousness, and existence.
For Albert Camus, reality is absurd—a constant tension between our human desire for meaning and the world’s silence in response.