In philosophy, the theory that universals
(properties such as redness) have an existence independent of the human mind. Realists hold that the essence of things is objectively given in nature, and that our classifications are not arbitrary. As such, realism is contrasted with nominalism, the theory that universals are merely names or general terms.
More generally, realism is any philosophical theory that emphasizes the existence of some kind of things or objects, in contrast to theories that dispense with the things in question in favour of words, ideas, or logical constructions. In particular, the term stands for the theory that there is a reality quite independent of the mind. In this sense, realism is opposed to idealism, the theory that only minds and their contents exist.
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