A study that attempts to discover the fundamental principles of the sciences, the arts, and the world that the sciences and arts deal with; the word philosophy is from the Greek for “love of wisdom.” Philosophy has many branches that explore principles of specific areas, such as knowledge (epistemology), reasoning (logic), being in general (metaphysics), beauty (aesthetics), and human conduct (ethics).
Different approaches to philosophy are also called philosophies. (See also epicureanism, existentialism, idealism, materialism, nihilism, pragmatism, stoicism, and utilitarianism.)
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